swagger: '2.0'
info:
  version: '1.2.0-impl:etsi.org:ETSI_NFV_OpenAPI:1'
  title: SOL011 - NS Lifecycle Management Interface
  description: >
    SOL011 - NS Lifecycle Management Interface IMPORTANT: Please note that this
    file might be not aligned to the current version of the ETSI Group
    Specification it refers to and has not been approved by the ETSI NFV ISG. In
    case of discrepancies the published ETSI Group Specification takes
    precedence. Please report bugs to
    https://forge.etsi.org/bugzilla/buglist.cgi?component=Nfv-Openapis
  license:
    name: ETSI Forge copyright notice
    url: 'https://forge.etsi.org/etsi-forge-copyright-notice.txt'
  contact:
    name: NFV-SOL WG
externalDocs:
  description: ETSI GS NFV-SOL 011 V3.3.1
  url: >-
    https://www.etsi.org/deliver/etsi_gs/NFV-SOL/001_099/011/03.03.01_60/gs_NFV-SOL011v030301p.pdf
basePath: /callback/v1
schemes:
  - http
  - https
consumes:
  - application/json
produces:
  - application/json
paths:
  /URI_is_provided_by_the_client_when_creating_the_subscription-NsLcmOperationOccurrenceNotification:
    post:
      summary: Notify about NS lifecycle change
      description: >
        The POST method delivers a notification from the server to the client.
        This method shall support the URI query parameters, request and response
        data structures, and response codes, as specified in the Tables
        6.4.18.3.1-1 and 6.4.18.3.1-2.
      parameters:
        - name: NsLcmOperationOccurrenceNotification
          description: >
            A notification about lifecycle changes triggered by a NS LCM.
            operation occurrence.
          in: body
          required: true
          schema:
            type: object
            required:
              - id
              - nsInstanceId
              - nsLcmOpOccId
              - subscriptionId
              - timestamp
              - notificationStatus
              - operationState
              - isAutomaticInvocation
              - _links
            properties:
              id:
                description: |
                  An identifier with the intention of being globally unique.
                type: string
              nsInstanceId:
                description: |
                  An identifier with the intention of being globally unique.
                type: string
              nsLcmOpOccId:
                description: |
                  An identifier with the intention of being globally unique.
                type: string
              operation:
                description: >
                  The enumeration NsLcmOpType represents those lifecycle
                  operations that trigger a NS lifecycle management operation
                  occurrence notification. Value | Description
                  ------|------------ INSTANTIATE | Represents the "Instantiate
                  NS" LCM operation. SCALE | Represents the "Scale NS" LCM
                  operation. UPDATE | Represents the "Update NS" LCM operation.
                  TERMINATE | Represents the "Terminate NS" LCM operation. HEAL
                  | Represents the "Heal NS" LCM operation.
                type: string
                enum:
                  - INSTANTIATE
                  - SCALE
                  - UPDATE
                  - TERMINATE
                  - HEAL
              notificationType:
                description: >
                  Discriminator for the different notification types. Shall be
                  set to "NsLcmOperationOccurrenceNotification" for this
                  notification type.
                type: string
              subscriptionId:
                description: |
                  An identifier with the intention of being globally unique.
                type: string
              timestamp:
                description: >
                  Date-time stamp. Representation: String formatted according
                  toas defined by the date-time production in IETF RFC 3339.
                format: date-time
              notificationStatus:
                description: >
                  Indicates whether this notification reports about the start of
                  a NS lifecycle operation or the result of a NS lifecycle
                  operation. Permitted values: - START: Informs about the start
                  of the NS LCM operation occurrence. - RESULT: Informs about
                  the final or intermediate result of the NS LCM operation
                  occurrence.
                type: string
                enum:
                  - START
                  - RESULT
              operationState:
                description: >
                  The enumeration NsLcmOperationStateType shall comply with the
                  provisions defined in Table 6.5.4.4-1. Value | Description
                  ------|------------ PROCESSING | The LCM operation is
                  currently in execution. COMPLETED | The LCM operation has been
                  completed successfully. PARTIALLY_COMPLETED | The LCM
                  operation has been partially completed with accepTable errors.
                  FAILED_TEMP | The LCM operation has failed and execution has
                  stopped, but the execution of the operation is not considered
                  to be closed. FAILED | The LCM operation has failed and it
                  cannot be retried or rolled back, as it is determined that
                  such action won't succeed. OLLING_BACK | The LCM operation is
                  currently being rolled back. ROLLED_BACK | The LCM operation
                  has been successfully rolled back, i.e. The state of the VNF
                  prior to the original operation invocation has been restored
                  as closely as possible.
                type: string
                enum:
                  - PROCESSING
                  - COMPLETED
                  - FAILED_TEMP
                  - FAILED
                  - ROLLING_BACK
                  - ROLLED_BACK
              isAutomaticInvocation:
                description: |
                  The Boolean is a data type having two values (TRUE and FALSE).
                type: boolean
              affectedVnf:
                description: >
                  Information about the VNF instances that were affected during
                  the lifecycle operation.
                type: array
                items:
                  description: >
                    This type provides information about added, deleted and
                    modified VNFs.  It shall comply with the provisions in Table
                    6.5.3.2-1.
                  type: object
                  required:
                    - vnfInstanceId
                    - vnfdId
                    - vnfProfileId
                  properties:
                    vnfInstanceId:
                      description: >
                        An identifier with the intention of being globally
                        unique.
                      type: string
                    vnfdId:
                      description: >
                        An identifier with the intention of being globally
                        unique.
                      type: string
                    vnfProfileId:
                      description: >
                        An identifier that is unique within a NS descriptor.
                        Representation: string of variable length.
                      type: string
                    vnfName:
                      description: |
                        Name of the VNF Instance.
                      type: string
                    changeType:
                      description: >
                        Signals the type of change Permitted values: - ADD -
                        REMOVE - INSTANTIATE - TERMINATE - SCALE -
                        CHANGE_FLAVOUR - HEAL - OPERATE - MODIFY_INFORMATION -
                        CHANGE_EXTERNAL_VNF_CONNECTIVITY
                      type: string
                      enum:
                        - ADD
                        - REMOVE
                        - INSTANTIATE
                        - TERMINATE
                        - SCALE
                        - CHANGE_FLAVOUR
                        - HEAL
                        - OPERATE
                        - MODIFY_INFORMATION
                        - CHANGE_EXTERNAL_VNF_CONNECTIVITY
                    changeResult:
                      description: >
                        Signals the result of change identified by the
                        "changeType" attribute. Permitted values: - COMPLETED -
                        ROLLED_BACK - FAILED
                      type: string
                      enum:
                        - COMPLETED
                        - ROLLED_BACK
                        - FAILED
                    changedInfo:
                      description: >
                        Information about the changed VNF instance information,
                        including VNF configurable properties,if applicable.
                        When the "changedInfo" attribute is present,  either the
                        "changedVnfInfo" attribute or the
                        "changedExtConnectivity" attribute or both shall be
                        present.
                      type: object
                      required:
                        - self
                      properties:
                        changedVnfInfo:
                          description: >
                            This type represents the information that is
                            requested to be modified for a VNF instance. The
                            information to be modified shall comply with the
                            associated NSD. EXAMPLE. The vnfPkgId attribute
                            value for a particular VNF instance can only be
                            updated with a value that matches the identifier
                            value of a VNF package whose vnfdId is present in
                            the associated profile of the NSD.
                          type: object
                          required:
                            - vnfInstanceId
                          properties:
                            vnfInstanceId:
                              description: >
                                An identifier with the intention of being
                                globally unique.
                              type: string
                            vnfInstanceName:
                              description: >
                                New value of the "vnfInstanceName" attribute in
                                "VnfInstance", or "null" to remove the
                                attribute.
                              type: string
                            vnfInstanceDescription:
                              description: >
                                New value of the "vnfInstanceDescription"
                                attribute in "VnfInstance", or "null" to remove
                                the attribute.
                              type: string
                            vnfdId:
                              description: >
                                An identifier with the intention of being
                                globally unique.
                              type: string
                            vnfConfigurableProperties:
                              description: >
                                This type represents a list of key-value pairs.
                                The order of the pairs in the list is not
                                significant. In JSON, a set of key- value pairs
                                is represented as an object. It shall comply
                                with the provisions defined in clause 4 of IETF
                                RFC 7159.
                              type: object
                            metadata:
                              description: >
                                This type represents a list of key-value pairs.
                                The order of the pairs in the list is not
                                significant. In JSON, a set of key- value pairs
                                is represented as an object. It shall comply
                                with the provisions defined in clause 4 of IETF
                                RFC 7159.
                              type: object
                            extensions:
                              description: >
                                This type represents a list of key-value pairs.
                                The order of the pairs in the list is not
                                significant. In JSON, a set of key- value pairs
                                is represented as an object. It shall comply
                                with the provisions defined in clause 4 of IETF
                                RFC 7159.
                              type: object
                        changedExtConnectivity:
                          type: object
                          required:
                            - id
                            - resourceHandle
                          properties:
                            id:
                              description: >
                                An identifier with the intention of being
                                globally unique.
                              type: string
                            resourceHandle:
                              description: >
                                This type represents the information that allows
                                addressing a virtualised resource that is used
                                by a VNF instance or by an NS instance.
                                Information about the resource is available from
                                the VIM.
                              type: object
                              required:
                                - resourceId
                              properties:
                                vimId:
                                  description: >
                                    An identifier with the intention of being
                                    globally unique.
                                  type: string
                                resourceProviderId:
                                  description: >
                                    An identifier with the intention of being
                                    globally unique.
                                  type: string
                                resourceId:
                                  description: >
                                    An identifier maintained by the VIM or other
                                    resource provider. It is expected to be
                                    unique within the VIM instance.
                                    Representation: string of variable length.
                                  type: string
                                vimLevelResourceType:
                                  description: >
                                    Type of the resource in the scope of the VIM
                                    or the resource provider. The value set of
                                    the "vimLevelResourceType" attribute is
                                    within the scope of the VIM or the resource
                                    provider and can be used as information that
                                    complements the ResourceHandle.
                                  type: string
                            extLinkPorts:
                              description: |
                                Link ports of this VL.
                              type: array
                              items:
                                description: >
                                  This type represents information about a link
                                  port of an external VL, i.e. a port providing
                                  connectivity for the VNF to an NS VL. 
                                type: object
                                required:
                                  - id
                                  - resourceHandle
                                properties:
                                  id:
                                    description: >
                                      An identifier with the intention of being
                                      globally unique.
                                    type: string
                                  resourceHandle:
                                    description: >
                                      This type represents the information that
                                      allows addressing a virtualised resource
                                      that is used by a VNF instance or by an NS
                                      instance. Information about the resource
                                      is available from the VIM.
                                    type: object
                                    required:
                                      - resourceId
                                    properties:
                                      vimId:
                                        description: >
                                          An identifier with the intention of
                                          being globally unique.
                                        type: string
                                      resourceProviderId:
                                        description: >
                                          An identifier with the intention of
                                          being globally unique.
                                        type: string
                                      resourceId:
                                        description: >
                                          An identifier maintained by the VIM or
                                          other resource provider. It is expected
                                          to be unique within the VIM instance.
                                          Representation: string of variable
                                          length.
                                        type: string
                                      vimLevelResourceType:
                                        description: >
                                          Type of the resource in the scope of the
                                          VIM or the resource provider. The value
                                          set of the "vimLevelResourceType"
                                          attribute is within the scope of the VIM
                                          or the resource provider and can be used
                                          as information that complements the
                                          ResourceHandle.
                                        type: string
                                  cpInstanceId:
                                    description: >
                                      An identifier that is unique for the
                                      respective type within a VNF instance, but
                                      may not be globally unique.
                                    type: string
              affectedPnf:
                description: >
                  Information about the PNF instances that were affected during
                  the lifecycle operation.
                type: array
                items:
                  description: >
                    This type provides information about added, deleted and
                    modified PNFs.  It shall comply with the provisions in Table
                    6.5.3.3-1.
                  type: object
                  required:
                    - pnfId
                    - pnfdId
                    - pnfProfileId
                    - cpInstanceId
                  properties:
                    pnfId:
                      description: >
                        An identifier with the intention of being globally
                        unique.
                      type: string
                    pnfdId:
                      description: >
                        An identifier that is unique within a NS descriptor.
                        Representation: string of variable length.
                      type: string
                    pnfProfileId:
                      description: >
                        An identifier that is unique within a NS descriptor.
                        Representation: string of variable length.
                      type: string
                    pnfName:
                      description: |
                        Name of the PNF.
                      type: string
                    cpInstanceId:
                      description: |
                        Identifier of the CP in the scope of the PNF.
                      type: array
                      items:
                        description: >
                          An Identifier that is unique within respect to a PNF.
                          Representation: string of variable length.
                        type: string
                    changeType:
                      description: >
                        Signals the type of change. Permitted values: - ADD -
                        REMOVE - MODIFY
                      type: string
                      enum:
                        - ADD
                        - REMOVE
                        - MODIFY
                    changeResult:
                      description: >
                        Signals the result of change identified by the
                        "changeType" attribute. Permitted values: - COMPLETED -
                        ROLLED_BACK - FAILED
                      type: string
                      enum:
                        - COMPLETED
                        - ROLLED_BACK
                        - FAILED
              affectedVl:
                description: >
                  Information about the VL instances that were affected during
                  the lifecycle operation.
                type: array
                items:
                  description: >
                    This type provides information about added, deleted,
                    modified and temporary VLs.
                  type: object
                  required:
                    - id
                    - virtualLinkDescId
                    - changeType
                    - networkResource
                  properties:
                    id:
                      description: >
                        An identifier that is unique for the respective type
                        within a VNF instance, but may not be globally unique.
                      type: string
                    virtualLinkDescId:
                      description: >
                        Identifier of the VNF Virtual Link Descriptor (VLD) in
                        the VNFD.
                      type: string
                    changeType:
                      description: >
                        Signals the type of change. Permitted values: * ADDED *
                        REMOVED * MODIFIED * TEMPORARY * LINK_PORT_ADDED *
                        LINK_PORT_REMOVED For a temporary resource, an
                        AffectedVirtualLink structure exists as long as the
                        temporary resource exists.
                      type: string
                      enum:
                        - ADDED
                        - REMOVED
                        - MODIFIED
                        - TEMPORARY
                        - LINK_PORT_ADDED
                        - LINK_PORT_REMOVED
                    networkResource:
                      description: >
                        This type represents the information that allows
                        addressing a virtualised resource that is used by a VNF
                        instance or by an NS instance. Information about the
                        resource is available from the VIM.
                      type: object
                      required:
                        - resourceId
                      properties:
                        vimId:
                          description: >
                            An identifier with the intention of being globally
                            unique.
                          type: string
                        resourceProviderId:
                          description: >
                            An identifier with the intention of being globally
                            unique.
                          type: string
                        resourceId:
                          description: >
                            An identifier maintained by the VIM or other
                            resource provider. It is expected to be unique
                            within the VIM instance. Representation: string of
                            variable length.
                          type: string
                        vimLevelResourceType:
                          description: >
                            Type of the resource in the scope of the VIM or the
                            resource provider. The value set of the
                            "vimLevelResourceType" attribute is within the scope
                            of the VIM or the resource provider and can be used
                            as information that complements the ResourceHandle.
                          type: string
                    metadata:
                      description: >
                        This type represents a list of key-value pairs. The
                        order of the pairs in the list is not significant. In
                        JSON, a set of key- value pairs is represented as an
                        object. It shall comply with the provisions defined in
                        clause 4 of IETF RFC 7159.
                      type: object
              affectedVnffg:
                description: >
                  Information about the VNFFG instances that were affected
                  during the lifecycle operation.
                type: array
                items:
                  description: >
                    This type provides information about added, deleted and
                    modified VNFFG instances. It shall comply with the
                    provisions in Table 6.5.3.5-1.
                  type: object
                  required:
                    - vnffgInstanceId
                    - vnffgdId
                  properties:
                    vnffgInstanceId:
                      description: >
                        An identifier that is unique with respect to a NS.
                        Representation: string of variable length.
                      type: string
                    vnffgdId:
                      description: >
                        An identifier that is unique within a NS descriptor.
                        Representation: string of variable length.
                      type: string
                    changeType:
                      description: >
                        Signals the type of change. Permitted values: - ADD -
                        DELETE - MODIFY
                      type: string
                      enum:
                        - ADD
                        - DELETE
                        - MODIFY
                    changeResult:
                      description: >
                        Signals the result of change identified by the
                        "changeType" attribute. Permitted values: - COMPLETED -
                        ROLLED_BACK - FAILED
                      type: string
                      enum:
                        - COMPLETED
                        - ROLLED_BACK
                        - FAILED
              affectedNs:
                description: >
                  Information about the SAP instances that were affected during
                  the lifecycle operation. See note.
                type: array
                items:
                  description: >
                    This type provides information about added, deleted and
                    modified nested NSs. It shall comply with the provisions in
                    Table 6.5.3.6-1.
                  type: object
                  required:
                    - nsInstanceId
                    - nsdId
                    - changeType
                    - changeResult
                  properties:
                    nsInstanceId:
                      description: >
                        An identifier with the intention of being globally
                        unique.
                      type: string
                    nsdId:
                      description: >
                        An identifier with the intention of being globally
                        unique.
                      type: string
                    changeType:
                      description: >
                        Signals the type of lifecycle change. Permitted values:
                        - ADD - REMOVE - INSTANTIATE - SCALE - UPDATE - HEAL -
                        TERMINATE
                      type: string
                      enum:
                        - ADD
                        - REMOVE
                        - INSTANTIATE
                        - SCALE
                        - UPDATE
                        - HEAL
                        - TERMINATE
                    changeResult:
                      description: >
                        Signals the result of change identified by the
                        "changeType" attribute. Permitted values: - COMPLETED -
                        ROLLED_BACK - FAILED - PARTIALLY_COMPLETED
                      type: string
                      enum:
                        - COMPLETED
                        - ROLLED_BACK
                        - FAILED
                        - PARTIALLY_COMPLETED
              affectedSap:
                description: >
                  Information about the SAP instances that were affected during
                  the lifecycle operation. Shall be present if the
                  "notificationStatus" is set to "RESULT" and the operation has
                  performed any resource modification. Shall be absent
                  otherwise.
                type: array
                items:
                  description: >
                    This type provides information about added, deleted and
                    modified SAP of a NS. It shall comply with the provisions in
                    Table 6.5.3.7-1.
                  type: object
                  required:
                    - sapInstanceId
                    - sapdId
                  properties:
                    sapInstanceId:
                      description: >
                        An identifier with the intention of being globally
                        unique.
                      type: string
                    sapdId:
                      description: >
                        An identifier with the intention of being globally
                        unique.
                      type: string
                    sapName:
                      description: |
                        Human readable name for the SAP.
                      type: string
                    changeType:
                      description: >
                        Signals the type of lifecycle change. Permitted values:
                        - ADD - REMOVE - MODIFY
                      type: string
                      enum:
                        - ADD
                        - REMOVE
                        - MODIFY
                    changeResult:
                      description: >
                        Signals the result of change identified by the
                        "changeType" attribute. Permitted values: - COMPLETED -
                        ROLLED_BACK - FAILED
                      type: string
                      enum:
                        - COMPLETED
                        - ROLLED_BACK
                        - FAILED
              error:
                description: >
                  The definition of the general "ProblemDetails" data structure
                  from IETF RFC 7807 [19] is reproduced in this structure.
                  Compared to the general framework defined in IETF RFC 7807
                  [19], the "status" and "detail" attributes are mandated to be
                  included by the present document, to ensure that the response
                  contains additional textual information about an error. IETF
                  RFC 7807 [19] foresees extensibility of the "ProblemDetails"
                  type. It is possible that particular APIs in the present
                  document, or particular implementations, define extensions to
                  define additional attributes that provide more information
                  about the error. The description column only provides some
                  explanation of the meaning to Facilitate understanding of the
                  design. For a full description, see IETF RFC 7807 [19].
                type: object
                required:
                  - status
                  - detail
                properties:
                  type:
                    description: >
                      A URI reference according to IETF RFC 3986 [5] that
                      identifies the problem type. It is encouraged that the URI
                      provides human-readable documentation for the problem
                      (e.g. using HTML) when dereferenced. When this member is
                      not present, its value is assumed to be "about:blank".
                    type: string
                    format: URI
                  title:
                    description: >
                      A short, human-readable summary of the problem type. It
                      should not change from occurrence to occurrence of the
                      problem, except for purposes of localization. If type is
                      given and other than "about:blank", this attribute shall
                      also be provided. A short, human-readable summary of the
                      problem type.  It SHOULD NOT change from occurrence to
                      occurrence of the problem, except for purposes of
                      localization (e.g., using proactive content negotiation;
                      see [RFC7231], Section 3.4).
                    type: string
                  status:
                    description: >
                      The HTTP status code for this occurrence of the problem.
                      The HTTP status code ([RFC7231], Section 6) generated by
                      the origin server for this occurrence of the problem.
                    type: integer
                  detail:
                    description: >
                      A human-readable explanation specific to this occurrence
                      of the problem.
                    type: string
                  instance:
                    description: >
                      A URI reference that identifies the specific occurrence of
                      the problem. It may yield further information if
                      dereferenced.
                    type: string
                    format: URI
              _links:
                description: >
                  This type represents the links to resources that a
                  notification can contain.
                type: object
                required:
                  - nsInstance
                properties:
                  nsInstance:
                    description: >
                      This type represents a link to a resource in a
                      notification, using an absolute or relative URI.
                    type: object
                    required:
                      - href
                    properties:
                      href:
                        description: >
                          URI of a resource referenced from a notification.
                          Should be an absolute URI (i.e. a URI that contains
                          {apiRoot}), however, may be a relative URI (i.e. a URI
                          where the {apiRoot} part is omitted) if the {apiRoot}
                          information is not available.
                        type: string
                        format: url
                  subscription:
                    description: >
                      This type represents a link to a resource in a
                      notification, using an absolute or relative URI.
                    type: object
                    required:
                      - href
                    properties:
                      href:
                        description: >
                          URI of a resource referenced from a notification.
                          Should be an absolute URI (i.e. a URI that contains
                          {apiRoot}), however, may be a relative URI (i.e. a URI
                          where the {apiRoot} part is omitted) if the {apiRoot}
                          information is not available.
                        type: string
                        format: url
                  nslcmOpOcc:
                    description: >
                      This type represents a link to a resource in a
                      notification, using an absolute or relative URI.
                    type: object
                    required:
                      - href
                    properties:
                      href:
                        description: >
                          URI of a resource referenced from a notification.
                          Should be an absolute URI (i.e. a URI that contains
                          {apiRoot}), however, may be a relative URI (i.e. a URI
                          where the {apiRoot} part is omitted) if the {apiRoot}
                          information is not available.
                        type: string
                        format: url
        - name: Accept
          description: >
            Content-Types that are acceptable for the response. Reference: IETF
            RFC 7231
          in: header
          required: true
          type: string
        - name: Authorization
          description: |
            The authorization token for the request. Reference: IETF RFC 7235
          in: header
          required: false
          type: string
        - name: Content-Type
          description: |
            The MIME type of the body of the request. Reference: IETF RFC 7231
          in: header
          required: true
          type: string
        - name: Version
          description: |
            Version of the API requested to use when responding to this request.
          in: header
          required: true
          type: string
      responses:
        '204':
          description: >
            204 No Content

            Shall be returned when the notification has been delivered
            successfully.
          headers:
            WWW-Authenticate:
              type: string
              description: >
                Challenge if the corresponding HTTP request has not provided
                authorization, or error details if the corresponding HTTP
                request has provided an invalid authorization token.
              maximum: 1
              minimum: 0
            Version:
              description: |
                Version of the API used in the response.
              type: string
              maximum: 1
              minimum: 1
        '400':
          description: >
            400 BAD REQUEST

            400 code can be returned in the following specified cases, the
            specific cause has to be proper specified in the "ProblemDetails"
            structure to be returned.

            If the request is malformed or syntactically incorrect (e.g. if the
            request URI contains incorrect query parameters or the payload body
            contains a syntactically incorrect data structure), the API producer
            shall respond with this response code. The "ProblemDetails"
            structure shall be provided, and should include in the "detail"
            attribute more information about the source of the problem.

            If the response to a GET request which queries a container resource
            would be so big that the performance of the API producer is
            adversely affected, and the API producer does not support paging for
            the affected resource, it shall respond with this response code. The
            "ProblemDetails" structure shall be provided, and should include in
            the "detail" attribute more information about the source of the
            problem.

            If there is an application error related to the client's input that
            cannot be easily mapped to any other HTTP response code ("catch all
            error"), the API producer shall respond with this response code. The
            "ProblemDetails" structure shall be provided, and shall include in
            the "detail" attribute more information about the source of the
            problem.

            If the request contains a malformed access token, the API producer
            should respond with this response. The details of the error shall be
            returned in the WWW Authenticate HTTP header, as defined in IETF RFC
            6750 and IETF RFC 7235. The ProblemDetails structure may be
            provided.

            The use of this HTTP error response code described above is
            applicable to the use of the OAuth 2.0 for the authorization of API
            requests and notifications, as defined in clauses 4.5.3.3 and
            4.5.3.4.
          headers:
            Content-Type:
              description: The MIME type of the body of the response.
              type: string
              maximum: 1
              minimum: 1
            WWW-Authenticate:
              description: >
                Challenge if the corresponding HTTP request has not provided
                authorization, or error details if the corresponding HTTP
                request has provided an invalid authorization token.
              type: string
              maximum: 1
              minimum: 0
            Version:
              description: |
                Version of the API used in the response.
              type: string
              maximum: 1
              minimum: 1
          schema:
            description: >
              The definition of the general "ProblemDetails" data structure from
              IETF RFC 7807 [19] is reproduced in this structure. Compared to
              the general framework defined in IETF RFC 7807 [19], the "status"
              and "detail" attributes are mandated to be included by the present
              document, to ensure that the response contains additional textual
              information about an error. IETF RFC 7807 [19] foresees
              extensibility of the "ProblemDetails" type. It is possible that
              particular APIs in the present document, or particular
              implementations, define extensions to define additional attributes
              that provide more information about the error. The description
              column only provides some explanation of the meaning to Facilitate
              understanding of the design. For a full description, see IETF RFC
              7807 [19].
            type: object
            required:
              - status
              - detail
            properties:
              type:
                description: >
                  A URI reference according to IETF RFC 3986 [5] that identifies
                  the problem type. It is encouraged that the URI provides
                  human-readable documentation for the problem (e.g. using HTML)
                  when dereferenced. When this member is not present, its value
                  is assumed to be "about:blank".
                type: string
                format: URI
              title:
                description: >
                  A short, human-readable summary of the problem type. It should
                  not change from occurrence to occurrence of the problem,
                  except for purposes of localization. If type is given and
                  other than "about:blank", this attribute shall also be
                  provided. A short, human-readable summary of the problem
                  type.  It SHOULD NOT change from occurrence to occurrence of
                  the problem, except for purposes of localization (e.g., using
                  proactive content negotiation; see [RFC7231], Section 3.4).
                type: string
              status:
                description: >
                  The HTTP status code for this occurrence of the problem. The
                  HTTP status code ([RFC7231], Section 6) generated by the
                  origin server for this occurrence of the problem.
                type: integer
              detail:
                description: >
                  A human-readable explanation specific to this occurrence of
                  the problem.
                type: string
              instance:
                description: >
                  A URI reference that identifies the specific occurrence of the
                  problem. It may yield further information if dereferenced.
                type: string
                format: URI
        '401':
          description: >
            401 UNAUTHORIZED

            If the request contains no access token even though one is required,
            or if the request contains an authorization token that is invalid
            (e.g. expired or revoked), the API producer should respond with this
            response. The details of the error shall be returned in the
            WWW-Authenticate HTTP header, as defined in IETF RFC 6750 and IETF
            RFC 7235. The ProblemDetails structure may be provided.
          headers:
            Content-Type:
              description: The MIME type of the body of the response.
              type: string
              maximum: 1
              minimum: 1
            WWW-Authenticate:
              description: >
                Challenge if the corresponding HTTP request has not provided
                authorization, or error details if the corresponding HTTP
                request has provided an invalid authorization token.
              type: string
              maximum: 1
              minimum: 0
            Version:
              description: |
                Version of the API used in the response.
              type: string
              maximum: 1
              minimum: 1
          schema:
            description: >
              The definition of the general "ProblemDetails" data structure from
              IETF RFC 7807 [19] is reproduced in this structure. Compared to
              the general framework defined in IETF RFC 7807 [19], the "status"
              and "detail" attributes are mandated to be included by the present
              document, to ensure that the response contains additional textual
              information about an error. IETF RFC 7807 [19] foresees
              extensibility of the "ProblemDetails" type. It is possible that
              particular APIs in the present document, or particular
              implementations, define extensions to define additional attributes
              that provide more information about the error. The description
              column only provides some explanation of the meaning to Facilitate
              understanding of the design. For a full description, see IETF RFC
              7807 [19].
            type: object
            required:
              - status
              - detail
            properties:
              type:
                description: >
                  A URI reference according to IETF RFC 3986 [5] that identifies
                  the problem type. It is encouraged that the URI provides
                  human-readable documentation for the problem (e.g. using HTML)
                  when dereferenced. When this member is not present, its value
                  is assumed to be "about:blank".
                type: string
                format: URI
              title:
                description: >
                  A short, human-readable summary of the problem type. It should
                  not change from occurrence to occurrence of the problem,
                  except for purposes of localization. If type is given and
                  other than "about:blank", this attribute shall also be
                  provided. A short, human-readable summary of the problem
                  type.  It SHOULD NOT change from occurrence to occurrence of
                  the problem, except for purposes of localization (e.g., using
                  proactive content negotiation; see [RFC7231], Section 3.4).
                type: string
              status:
                description: >
                  The HTTP status code for this occurrence of the problem. The
                  HTTP status code ([RFC7231], Section 6) generated by the
                  origin server for this occurrence of the problem.
                type: integer
              detail:
                description: >
                  A human-readable explanation specific to this occurrence of
                  the problem.
                type: string
              instance:
                description: >
                  A URI reference that identifies the specific occurrence of the
                  problem. It may yield further information if dereferenced.
                type: string
                format: URI
        '403':
          description: >
            403 FORBIDDEN

            If the API consumer is not allowed to perform a particular request
            to a particular resource, the API producer shall respond with this
            response code. The "ProblemDetails" structure shall be provided. It
            should include in the "detail" attribute information about the
            source of the problem, and may indicate how to solve it.
          headers:
            Content-Type:
              description: The MIME type of the body of the response.
              type: string
              maximum: 1
              minimum: 1
            WWW-Authenticate:
              description: >
                Challenge if the corresponding HTTP request has not provided
                authorization, or error details if the corresponding HTTP
                request has provided an invalid authorization token.
              type: string
              maximum: 1
              minimum: 0
            Version:
              description: |
                Version of the API used in the response.
              type: string
              maximum: 1
              minimum: 1
          schema:
            description: >
              The definition of the general "ProblemDetails" data structure from
              IETF RFC 7807 [19] is reproduced in this structure. Compared to
              the general framework defined in IETF RFC 7807 [19], the "status"
              and "detail" attributes are mandated to be included by the present
              document, to ensure that the response contains additional textual
              information about an error. IETF RFC 7807 [19] foresees
              extensibility of the "ProblemDetails" type. It is possible that
              particular APIs in the present document, or particular
              implementations, define extensions to define additional attributes
              that provide more information about the error. The description
              column only provides some explanation of the meaning to Facilitate
              understanding of the design. For a full description, see IETF RFC
              7807 [19].
            type: object
            required:
              - status
              - detail
            properties:
              type:
                description: >
                  A URI reference according to IETF RFC 3986 [5] that identifies
                  the problem type. It is encouraged that the URI provides
                  human-readable documentation for the problem (e.g. using HTML)
                  when dereferenced. When this member is not present, its value
                  is assumed to be "about:blank".
                type: string
                format: URI
              title:
                description: >
                  A short, human-readable summary of the problem type. It should
                  not change from occurrence to occurrence of the problem,
                  except for purposes of localization. If type is given and
                  other than "about:blank", this attribute shall also be
                  provided. A short, human-readable summary of the problem
                  type.  It SHOULD NOT change from occurrence to occurrence of
                  the problem, except for purposes of localization (e.g., using
                  proactive content negotiation; see [RFC7231], Section 3.4).
                type: string
              status:
                description: >
                  The HTTP status code for this occurrence of the problem. The
                  HTTP status code ([RFC7231], Section 6) generated by the
                  origin server for this occurrence of the problem.
                type: integer
              detail:
                description: >
                  A human-readable explanation specific to this occurrence of
                  the problem.
                type: string
              instance:
                description: >
                  A URI reference that identifies the specific occurrence of the
                  problem. It may yield further information if dereferenced.
                type: string
                format: URI
        '404':
          description: >
            404 NOT FOUND

            If the API producer did not find a current representation for the
            resource addressed by the URI passed in the request or is not
            willing to disclose that one exists, it shall respond with this
            response code. The "ProblemDetails" structure may be provided,
            including in the "detail" attribute information about the source of
            the problem, e.g. a wrong resource URI variable.

            This response code is not appropriate in case the resource addressed
            by the URI is a container resource which is designed to contain
            child resources, but does not contain any child resource at the time
            the request is received. For a GET request to an existing empty
            container resource, a typical response contains a 200 OK response
            code and a payload body with an empty array.
          headers:
            Content-Type:
              description: The MIME type of the body of the response.
              type: string
              maximum: 1
              minimum: 1
            WWW-Authenticate:
              description: >
                Challenge if the corresponding HTTP request has not provided
                authorization, or error details if the corresponding HTTP
                request has provided an invalid authorization token.
              type: string
              maximum: 1
              minimum: 0
            Version:
              description: |
                Version of the API used in the response.
              type: string
              maximum: 1
              minimum: 1
          schema:
            description: >
              The definition of the general "ProblemDetails" data structure from
              IETF RFC 7807 [19] is reproduced in this structure. Compared to
              the general framework defined in IETF RFC 7807 [19], the "status"
              and "detail" attributes are mandated to be included by the present
              document, to ensure that the response contains additional textual
              information about an error. IETF RFC 7807 [19] foresees
              extensibility of the "ProblemDetails" type. It is possible that
              particular APIs in the present document, or particular
              implementations, define extensions to define additional attributes
              that provide more information about the error. The description
              column only provides some explanation of the meaning to Facilitate
              understanding of the design. For a full description, see IETF RFC
              7807 [19].
            type: object
            required:
              - status
              - detail
            properties:
              type:
                description: >
                  A URI reference according to IETF RFC 3986 [5] that identifies
                  the problem type. It is encouraged that the URI provides
                  human-readable documentation for the problem (e.g. using HTML)
                  when dereferenced. When this member is not present, its value
                  is assumed to be "about:blank".
                type: string
                format: URI
              title:
                description: >
                  A short, human-readable summary of the problem type. It should
                  not change from occurrence to occurrence of the problem,
                  except for purposes of localization. If type is given and
                  other than "about:blank", this attribute shall also be
                  provided. A short, human-readable summary of the problem
                  type.  It SHOULD NOT change from occurrence to occurrence of
                  the problem, except for purposes of localization (e.g., using
                  proactive content negotiation; see [RFC7231], Section 3.4).
                type: string
              status:
                description: >
                  The HTTP status code for this occurrence of the problem. The
                  HTTP status code ([RFC7231], Section 6) generated by the
                  origin server for this occurrence of the problem.
                type: integer
              detail:
                description: >
                  A human-readable explanation specific to this occurrence of
                  the problem.
                type: string
              instance:
                description: >
                  A URI reference that identifies the specific occurrence of the
                  problem. It may yield further information if dereferenced.
                type: string
                format: URI
        '405':
          description: >
            405 METHOD NOT ALLOWED

            If a particular HTTP method is not supported for a particular
            resource, the API producer shall respond with this response code.
            The "ProblemDetails" structure may be omitted.
          headers:
            Content-Type:
              description: The MIME type of the body of the response.
              type: string
              maximum: 1
              minimum: 1
            WWW-Authenticate:
              description: >
                Challenge if the corresponding HTTP request has not provided
                authorization, or error details if the corresponding HTTP
                request has provided an invalid authorization token.
              type: string
              maximum: 1
              minimum: 0
            Version:
              description: |
                Version of the API used in the response.
              type: string
              maximum: 1
              minimum: 1
          schema:
            description: >
              The definition of the general "ProblemDetails" data structure from
              IETF RFC 7807 [19] is reproduced in this structure. Compared to
              the general framework defined in IETF RFC 7807 [19], the "status"
              and "detail" attributes are mandated to be included by the present
              document, to ensure that the response contains additional textual
              information about an error. IETF RFC 7807 [19] foresees
              extensibility of the "ProblemDetails" type. It is possible that
              particular APIs in the present document, or particular
              implementations, define extensions to define additional attributes
              that provide more information about the error. The description
              column only provides some explanation of the meaning to Facilitate
              understanding of the design. For a full description, see IETF RFC
              7807 [19].
            type: object
            required:
              - status
              - detail
            properties:
              type:
                description: >
                  A URI reference according to IETF RFC 3986 [5] that identifies
                  the problem type. It is encouraged that the URI provides
                  human-readable documentation for the problem (e.g. using HTML)
                  when dereferenced. When this member is not present, its value
                  is assumed to be "about:blank".
                type: string
                format: URI
              title:
                description: >
                  A short, human-readable summary of the problem type. It should
                  not change from occurrence to occurrence of the problem,
                  except for purposes of localization. If type is given and
                  other than "about:blank", this attribute shall also be
                  provided. A short, human-readable summary of the problem
                  type.  It SHOULD NOT change from occurrence to occurrence of
                  the problem, except for purposes of localization (e.g., using
                  proactive content negotiation; see [RFC7231], Section 3.4).
                type: string
              status:
                description: >
                  The HTTP status code for this occurrence of the problem. The
                  HTTP status code ([RFC7231], Section 6) generated by the
                  origin server for this occurrence of the problem.
                type: integer
              detail:
                description: >
                  A human-readable explanation specific to this occurrence of
                  the problem.
                type: string
              instance:
                description: >
                  A URI reference that identifies the specific occurrence of the
                  problem. It may yield further information if dereferenced.
                type: string
                format: URI
        '406':
          description: >
            406 NOT ACCEPTABLE

            If the "Accept" header does not contain at least one name of a
            content type that is acceptable to the API producer, the API
            producer shall respond with this response code. The "ProblemDetails"
            structure may be omitted.
          headers:
            Content-Type:
              description: The MIME type of the body of the response.
              type: string
              maximum: 1
              minimum: 1
            WWW-Authenticate:
              description: >
                Challenge if the corresponding HTTP request has not provided
                authorization, or error details if the corresponding HTTP
                request has provided an invalid authorization token.
              type: string
              maximum: 1
              minimum: 0
            Version:
              description: |
                Version of the API used in the response.
              type: string
              maximum: 1
              minimum: 1
          schema:
            description: >
              The definition of the general "ProblemDetails" data structure from
              IETF RFC 7807 [19] is reproduced in this structure. Compared to
              the general framework defined in IETF RFC 7807 [19], the "status"
              and "detail" attributes are mandated to be included by the present
              document, to ensure that the response contains additional textual
              information about an error. IETF RFC 7807 [19] foresees
              extensibility of the "ProblemDetails" type. It is possible that
              particular APIs in the present document, or particular
              implementations, define extensions to define additional attributes
              that provide more information about the error. The description
              column only provides some explanation of the meaning to Facilitate
              understanding of the design. For a full description, see IETF RFC
              7807 [19].
            type: object
            required:
              - status
              - detail
            properties:
              type:
                description: >
                  A URI reference according to IETF RFC 3986 [5] that identifies
                  the problem type. It is encouraged that the URI provides
                  human-readable documentation for the problem (e.g. using HTML)
                  when dereferenced. When this member is not present, its value
                  is assumed to be "about:blank".
                type: string
                format: URI
              title:
                description: >
                  A short, human-readable summary of the problem type. It should
                  not change from occurrence to occurrence of the problem,
                  except for purposes of localization. If type is given and
                  other than "about:blank", this attribute shall also be
                  provided. A short, human-readable summary of the problem
                  type.  It SHOULD NOT change from occurrence to occurrence of
                  the problem, except for purposes of localization (e.g., using
                  proactive content negotiation; see [RFC7231], Section 3.4).
                type: string
              status:
                description: >
                  The HTTP status code for this occurrence of the problem. The
                  HTTP status code ([RFC7231], Section 6) generated by the
                  origin server for this occurrence of the problem.
                type: integer
              detail:
                description: >
                  A human-readable explanation specific to this occurrence of
                  the problem.
                type: string
              instance:
                description: >
                  A URI reference that identifies the specific occurrence of the
                  problem. It may yield further information if dereferenced.
                type: string
                format: URI
        '500':
          description: >
            500 INTERNAL SERVER ERROR

            If there is an application error not related to the client's input
            that cannot be easily mapped to any other HTTP response code ("catch
            all error"), the API producer shall respond with this response code.
            The "ProblemDetails" structure shall be provided, and shall include
            in the "detail" attribute more information about the source of the
            problem.
          headers:
            Content-Type:
              description: The MIME type of the body of the response.
              type: string
              maximum: 1
              minimum: 1
            WWW-Authenticate:
              description: >
                Challenge if the corresponding HTTP request has not provided
                authorization, or error details if the corresponding HTTP
                request has provided an invalid authorization token.
              type: string
              maximum: 1
              minimum: 0
            Version:
              description: |
                Version of the API used in the response.
              type: string
              maximum: 1
              minimum: 1
          schema:
            description: >
              The definition of the general "ProblemDetails" data structure from
              IETF RFC 7807 [19] is reproduced in this structure. Compared to
              the general framework defined in IETF RFC 7807 [19], the "status"
              and "detail" attributes are mandated to be included by the present
              document, to ensure that the response contains additional textual
              information about an error. IETF RFC 7807 [19] foresees
              extensibility of the "ProblemDetails" type. It is possible that
              particular APIs in the present document, or particular
              implementations, define extensions to define additional attributes
              that provide more information about the error. The description
              column only provides some explanation of the meaning to Facilitate
              understanding of the design. For a full description, see IETF RFC
              7807 [19].
            type: object
            required:
              - status
              - detail
            properties:
              type:
                description: >
                  A URI reference according to IETF RFC 3986 [5] that identifies
                  the problem type. It is encouraged that the URI provides
                  human-readable documentation for the problem (e.g. using HTML)
                  when dereferenced. When this member is not present, its value
                  is assumed to be "about:blank".
                type: string
                format: URI
              title:
                description: >
                  A short, human-readable summary of the problem type. It should
                  not change from occurrence to occurrence of the problem,
                  except for purposes of localization. If type is given and
                  other than "about:blank", this attribute shall also be
                  provided. A short, human-readable summary of the problem
                  type.  It SHOULD NOT change from occurrence to occurrence of
                  the problem, except for purposes of localization (e.g., using
                  proactive content negotiation; see [RFC7231], Section 3.4).
                type: string
              status:
                description: >
                  The HTTP status code for this occurrence of the problem. The
                  HTTP status code ([RFC7231], Section 6) generated by the
                  origin server for this occurrence of the problem.
                type: integer
              detail:
                description: >
                  A human-readable explanation specific to this occurrence of
                  the problem.
                type: string
              instance:
                description: >
                  A URI reference that identifies the specific occurrence of the
                  problem. It may yield further information if dereferenced.
                type: string
                format: URI
        '503':
          description: >
            503 SERVICE UNAVAILABLE

            If the API producer encounters an internal overload situation of
            itself or of a system it relies on, it should respond with this
            response code, following the provisions in IETF RFC 7231 for the use
            of the "Retry-After" HTTP header and for the alternative to refuse
            the connection. The "ProblemDetails" structure may be omitted.
          headers:
            Content-Type:
              description: The MIME type of the body of the response.
              type: string
              maximum: 1
              minimum: 1
            WWW-Authenticate:
              description: >
                Challenge if the corresponding HTTP request has not provided
                authorization, or error details if the corresponding HTTP
                request has provided an invalid authorization token.
              type: string
              maximum: 1
              minimum: 0
            Version:
              description: |
                Version of the API used in the response.
              type: string
              maximum: 1
              minimum: 1
          schema:
            description: >
              The definition of the general "ProblemDetails" data structure from
              IETF RFC 7807 [19] is reproduced in this structure. Compared to
              the general framework defined in IETF RFC 7807 [19], the "status"
              and "detail" attributes are mandated to be included by the present
              document, to ensure that the response contains additional textual
              information about an error. IETF RFC 7807 [19] foresees
              extensibility of the "ProblemDetails" type. It is possible that
              particular APIs in the present document, or particular
              implementations, define extensions to define additional attributes
              that provide more information about the error. The description
              column only provides some explanation of the meaning to Facilitate
              understanding of the design. For a full description, see IETF RFC
              7807 [19].
            type: object
            required:
              - status
              - detail
            properties:
              type:
                description: >
                  A URI reference according to IETF RFC 3986 [5] that identifies
                  the problem type. It is encouraged that the URI provides
                  human-readable documentation for the problem (e.g. using HTML)
                  when dereferenced. When this member is not present, its value
                  is assumed to be "about:blank".
                type: string
                format: URI
              title:
                description: >
                  A short, human-readable summary of the problem type. It should
                  not change from occurrence to occurrence of the problem,
                  except for purposes of localization. If type is given and
                  other than "about:blank", this attribute shall also be
                  provided. A short, human-readable summary of the problem
                  type.  It SHOULD NOT change from occurrence to occurrence of
                  the problem, except for purposes of localization (e.g., using
                  proactive content negotiation; see [RFC7231], Section 3.4).
                type: string
              status:
                description: >
                  The HTTP status code for this occurrence of the problem. The
                  HTTP status code ([RFC7231], Section 6) generated by the
                  origin server for this occurrence of the problem.
                type: integer
              detail:
                description: >
                  A human-readable explanation specific to this occurrence of
                  the problem.
                type: string
              instance:
                description: >
                  A URI reference that identifies the specific occurrence of the
                  problem. It may yield further information if dereferenced.
                type: string
                format: URI
    get:
      summary: Test the notification endpoint.
      description: >
        Query NS Instances.

        The GET method queries information about multiple NS instances. This
        method shall support the URI query parameters, request and response data
        structures, and response codes, as specified in the Tables 6.4.2.3.2-1
        and 6.4.2.3.2-2.
      parameters:
        - name: Accept
          description: >
            Content-Types that are acceptable for the response. Reference: IETF
            RFC 7231
          in: header
          required: true
          type: string
        - name: Authorization
          description: |
            The authorization token for the request. Reference: IETF RFC 7235
          in: header
          required: false
          type: string
        - name: Version
          description: |
            Version of the API requested to use when responding to this request.
          in: header
          required: true
          type: string
      responses:
        '204':
          description: >
            204 No Content

            Shall be returned when the notification endpoint has been tested
            successfully. The response body shall be empty.
          headers:
            WWW-Authenticate:
              type: string
              description: >
                Challenge if the corresponding HTTP request has not provided
                authorization, or error details if the corresponding HTTP
                request has provided an invalid authorization token.
              maximum: 1
              minimum: 0
            Version:
              description: |
                Version of the API used in the response.
              type: string
              maximum: 1
              minimum: 1
        '400':
          description: >
            400 BAD REQUEST

            400 code can be returned in the following specified cases, the
            specific cause has to be proper specified in the "ProblemDetails"
            structure to be returned.

            If the request is malformed or syntactically incorrect (e.g. if the
            request URI contains incorrect query parameters or the payload body
            contains a syntactically incorrect data structure), the API producer
            shall respond with this response code. The "ProblemDetails"
            structure shall be provided, and should include in the "detail"
            attribute more information about the source of the problem.

            If the response to a GET request which queries a container resource
            would be so big that the performance of the API producer is
            adversely affected, and the API producer does not support paging for
            the affected resource, it shall respond with this response code. The
            "ProblemDetails" structure shall be provided, and should include in
            the "detail" attribute more information about the source of the
            problem.

            If there is an application error related to the client's input that
            cannot be easily mapped to any other HTTP response code ("catch all
            error"), the API producer shall respond with this response code. The
            "ProblemDetails" structure shall be provided, and shall include in
            the "detail" attribute more information about the source of the
            problem.

            If the request contains a malformed access token, the API producer
            should respond with this response. The details of the error shall be
            returned in the WWW Authenticate HTTP header, as defined in IETF RFC
            6750 and IETF RFC 7235. The ProblemDetails structure may be
            provided.

            The use of this HTTP error response code described above is
            applicable to the use of the OAuth 2.0 for the authorization of API
            requests and notifications, as defined in clauses 4.5.3.3 and
            4.5.3.4.
          headers:
            Content-Type:
              description: The MIME type of the body of the response.
              type: string
              maximum: 1
              minimum: 1
            WWW-Authenticate:
              description: >
                Challenge if the corresponding HTTP request has not provided
                authorization, or error details if the corresponding HTTP
                request has provided an invalid authorization token.
              type: string
              maximum: 1
              minimum: 0
            Version:
              description: |
                Version of the API used in the response.
              type: string
              maximum: 1
              minimum: 1
          schema:
            description: >
              The definition of the general "ProblemDetails" data structure from
              IETF RFC 7807 [19] is reproduced in this structure. Compared to
              the general framework defined in IETF RFC 7807 [19], the "status"
              and "detail" attributes are mandated to be included by the present
              document, to ensure that the response contains additional textual
              information about an error. IETF RFC 7807 [19] foresees
              extensibility of the "ProblemDetails" type. It is possible that
              particular APIs in the present document, or particular
              implementations, define extensions to define additional attributes
              that provide more information about the error. The description
              column only provides some explanation of the meaning to Facilitate
              understanding of the design. For a full description, see IETF RFC
              7807 [19].
            type: object
            required:
              - status
              - detail
            properties:
              type:
                description: >
                  A URI reference according to IETF RFC 3986 [5] that identifies
                  the problem type. It is encouraged that the URI provides
                  human-readable documentation for the problem (e.g. using HTML)
                  when dereferenced. When this member is not present, its value
                  is assumed to be "about:blank".
                type: string
                format: URI
              title:
                description: >
                  A short, human-readable summary of the problem type. It should
                  not change from occurrence to occurrence of the problem,
                  except for purposes of localization. If type is given and
                  other than "about:blank", this attribute shall also be
                  provided. A short, human-readable summary of the problem
                  type.  It SHOULD NOT change from occurrence to occurrence of
                  the problem, except for purposes of localization (e.g., using
                  proactive content negotiation; see [RFC7231], Section 3.4).
                type: string
              status:
                description: >
                  The HTTP status code for this occurrence of the problem. The
                  HTTP status code ([RFC7231], Section 6) generated by the
                  origin server for this occurrence of the problem.
                type: integer
              detail:
                description: >
                  A human-readable explanation specific to this occurrence of
                  the problem.
                type: string
              instance:
                description: >
                  A URI reference that identifies the specific occurrence of the
                  problem. It may yield further information if dereferenced.
                type: string
                format: URI
        '401':
          description: >
            401 UNAUTHORIZED

            If the request contains no access token even though one is required,
            or if the request contains an authorization token that is invalid
            (e.g. expired or revoked), the API producer should respond with this
            response. The details of the error shall be returned in the
            WWW-Authenticate HTTP header, as defined in IETF RFC 6750 and IETF
            RFC 7235. The ProblemDetails structure may be provided.
          headers:
            Content-Type:
              description: The MIME type of the body of the response.
              type: string
              maximum: 1
              minimum: 1
            WWW-Authenticate:
              description: >
                Challenge if the corresponding HTTP request has not provided
                authorization, or error details if the corresponding HTTP
                request has provided an invalid authorization token.
              type: string
              maximum: 1
              minimum: 0
            Version:
              description: |
                Version of the API used in the response.
              type: string
              maximum: 1
              minimum: 1
          schema:
            description: >
              The definition of the general "ProblemDetails" data structure from
              IETF RFC 7807 [19] is reproduced in this structure. Compared to
              the general framework defined in IETF RFC 7807 [19], the "status"
              and "detail" attributes are mandated to be included by the present
              document, to ensure that the response contains additional textual
              information about an error. IETF RFC 7807 [19] foresees
              extensibility of the "ProblemDetails" type. It is possible that
              particular APIs in the present document, or particular
              implementations, define extensions to define additional attributes
              that provide more information about the error. The description
              column only provides some explanation of the meaning to Facilitate
              understanding of the design. For a full description, see IETF RFC
              7807 [19].
            type: object
            required:
              - status
              - detail
            properties:
              type:
                description: >
                  A URI reference according to IETF RFC 3986 [5] that identifies
                  the problem type. It is encouraged that the URI provides
                  human-readable documentation for the problem (e.g. using HTML)
                  when dereferenced. When this member is not present, its value
                  is assumed to be "about:blank".
                type: string
                format: URI
              title:
                description: >
                  A short, human-readable summary of the problem type. It should
                  not change from occurrence to occurrence of the problem,
                  except for purposes of localization. If type is given and
                  other than "about:blank", this attribute shall also be
                  provided. A short, human-readable summary of the problem
                  type.  It SHOULD NOT change from occurrence to occurrence of
                  the problem, except for purposes of localization (e.g., using
                  proactive content negotiation; see [RFC7231], Section 3.4).
                type: string
              status:
                description: >
                  The HTTP status code for this occurrence of the problem. The
                  HTTP status code ([RFC7231], Section 6) generated by the
                  origin server for this occurrence of the problem.
                type: integer
              detail:
                description: >
                  A human-readable explanation specific to this occurrence of
                  the problem.
                type: string
              instance:
                description: >
                  A URI reference that identifies the specific occurrence of the
                  problem. It may yield further information if dereferenced.
                type: string
                format: URI
        '403':
          description: >
            403 FORBIDDEN

            If the API consumer is not allowed to perform a particular request
            to a particular resource, the API producer shall respond with this
            response code. The "ProblemDetails" structure shall be provided. It
            should include in the "detail" attribute information about the
            source of the problem, and may indicate how to solve it.
          headers:
            Content-Type:
              description: The MIME type of the body of the response.
              type: string
              maximum: 1
              minimum: 1
            WWW-Authenticate:
              description: >
                Challenge if the corresponding HTTP request has not provided
                authorization, or error details if the corresponding HTTP
                request has provided an invalid authorization token.
              type: string
              maximum: 1
              minimum: 0
            Version:
              description: |
                Version of the API used in the response.
              type: string
              maximum: 1
              minimum: 1
          schema:
            description: >
              The definition of the general "ProblemDetails" data structure from
              IETF RFC 7807 [19] is reproduced in this structure. Compared to
              the general framework defined in IETF RFC 7807 [19], the "status"
              and "detail" attributes are mandated to be included by the present
              document, to ensure that the response contains additional textual
              information about an error. IETF RFC 7807 [19] foresees
              extensibility of the "ProblemDetails" type. It is possible that
              particular APIs in the present document, or particular
              implementations, define extensions to define additional attributes
              that provide more information about the error. The description
              column only provides some explanation of the meaning to Facilitate
              understanding of the design. For a full description, see IETF RFC
              7807 [19].
            type: object
            required:
              - status
              - detail
            properties:
              type:
                description: >
                  A URI reference according to IETF RFC 3986 [5] that identifies
                  the problem type. It is encouraged that the URI provides
                  human-readable documentation for the problem (e.g. using HTML)
                  when dereferenced. When this member is not present, its value
                  is assumed to be "about:blank".
                type: string
                format: URI
              title:
                description: >
                  A short, human-readable summary of the problem type. It should
                  not change from occurrence to occurrence of the problem,
                  except for purposes of localization. If type is given and
                  other than "about:blank", this attribute shall also be
                  provided. A short, human-readable summary of the problem
                  type.  It SHOULD NOT change from occurrence to occurrence of
                  the problem, except for purposes of localization (e.g., using
                  proactive content negotiation; see [RFC7231], Section 3.4).
                type: string
              status:
                description: >
                  The HTTP status code for this occurrence of the problem. The
                  HTTP status code ([RFC7231], Section 6) generated by the
                  origin server for this occurrence of the problem.
                type: integer
              detail:
                description: >
                  A human-readable explanation specific to this occurrence of
                  the problem.
                type: string
              instance:
                description: >
                  A URI reference that identifies the specific occurrence of the
                  problem. It may yield further information if dereferenced.
                type: string
                format: URI
        '404':
          description: >
            404 NOT FOUND

            If the API producer did not find a current representation for the
            resource addressed by the URI passed in the request or is not
            willing to disclose that one exists, it shall respond with this
            response code. The "ProblemDetails" structure may be provided,
            including in the "detail" attribute information about the source of
            the problem, e.g. a wrong resource URI variable.

            This response code is not appropriate in case the resource addressed
            by the URI is a container resource which is designed to contain
            child resources, but does not contain any child resource at the time
            the request is received. For a GET request to an existing empty
            container resource, a typical response contains a 200 OK response
            code and a payload body with an empty array.
          headers:
            Content-Type:
              description: The MIME type of the body of the response.
              type: string
              maximum: 1
              minimum: 1
            WWW-Authenticate:
              description: >
                Challenge if the corresponding HTTP request has not provided
                authorization, or error details if the corresponding HTTP
                request has provided an invalid authorization token.
              type: string
              maximum: 1
              minimum: 0
            Version:
              description: |
                Version of the API used in the response.
              type: string
              maximum: 1
              minimum: 1
          schema:
            description: >
              The definition of the general "ProblemDetails" data structure from
              IETF RFC 7807 [19] is reproduced in this structure. Compared to
              the general framework defined in IETF RFC 7807 [19], the "status"
              and "detail" attributes are mandated to be included by the present
              document, to ensure that the response contains additional textual
              information about an error. IETF RFC 7807 [19] foresees
              extensibility of the "ProblemDetails" type. It is possible that
              particular APIs in the present document, or particular
              implementations, define extensions to define additional attributes
              that provide more information about the error. The description
              column only provides some explanation of the meaning to Facilitate
              understanding of the design. For a full description, see IETF RFC
              7807 [19].
            type: object
            required:
              - status
              - detail
            properties:
              type:
                description: >
                  A URI reference according to IETF RFC 3986 [5] that identifies
                  the problem type. It is encouraged that the URI provides
                  human-readable documentation for the problem (e.g. using HTML)
                  when dereferenced. When this member is not present, its value
                  is assumed to be "about:blank".
                type: string
                format: URI
              title:
                description: >
                  A short, human-readable summary of the problem type. It should
                  not change from occurrence to occurrence of the problem,
                  except for purposes of localization. If type is given and
                  other than "about:blank", this attribute shall also be
                  provided. A short, human-readable summary of the problem
                  type.  It SHOULD NOT change from occurrence to occurrence of
                  the problem, except for purposes of localization (e.g., using
                  proactive content negotiation; see [RFC7231], Section 3.4).
                type: string
              status:
                description: >
                  The HTTP status code for this occurrence of the problem. The
                  HTTP status code ([RFC7231], Section 6) generated by the
                  origin server for this occurrence of the problem.
                type: integer
              detail:
                description: >
                  A human-readable explanation specific to this occurrence of
                  the problem.
                type: string
              instance:
                description: >
                  A URI reference that identifies the specific occurrence of the
                  problem. It may yield further information if dereferenced.
                type: string
                format: URI
        '405':
          description: >
            405 METHOD NOT ALLOWED

            If a particular HTTP method is not supported for a particular
            resource, the API producer shall respond with this response code.
            The "ProblemDetails" structure may be omitted.
          headers:
            Content-Type:
              description: The MIME type of the body of the response.
              type: string
              maximum: 1
              minimum: 1
            WWW-Authenticate:
              description: >
                Challenge if the corresponding HTTP request has not provided
                authorization, or error details if the corresponding HTTP
                request has provided an invalid authorization token.
              type: string
              maximum: 1
              minimum: 0
            Version:
              description: |
                Version of the API used in the response.
              type: string
              maximum: 1
              minimum: 1
          schema:
            description: >
              The definition of the general "ProblemDetails" data structure from
              IETF RFC 7807 [19] is reproduced in this structure. Compared to
              the general framework defined in IETF RFC 7807 [19], the "status"
              and "detail" attributes are mandated to be included by the present
              document, to ensure that the response contains additional textual
              information about an error. IETF RFC 7807 [19] foresees
              extensibility of the "ProblemDetails" type. It is possible that
              particular APIs in the present document, or particular
              implementations, define extensions to define additional attributes
              that provide more information about the error. The description
              column only provides some explanation of the meaning to Facilitate
              understanding of the design. For a full description, see IETF RFC
              7807 [19].
            type: object
            required:
              - status
              - detail
            properties:
              type:
                description: >
                  A URI reference according to IETF RFC 3986 [5] that identifies
                  the problem type. It is encouraged that the URI provides
                  human-readable documentation for the problem (e.g. using HTML)
                  when dereferenced. When this member is not present, its value
                  is assumed to be "about:blank".
                type: string
                format: URI
              title:
                description: >
                  A short, human-readable summary of the problem type. It should
                  not change from occurrence to occurrence of the problem,
                  except for purposes of localization. If type is given and
                  other than "about:blank", this attribute shall also be
                  provided. A short, human-readable summary of the problem
                  type.  It SHOULD NOT change from occurrence to occurrence of
                  the problem, except for purposes of localization (e.g., using
                  proactive content negotiation; see [RFC7231], Section 3.4).
                type: string
              status:
                description: >
                  The HTTP status code for this occurrence of the problem. The
                  HTTP status code ([RFC7231], Section 6) generated by the
                  origin server for this occurrence of the problem.
                type: integer
              detail:
                description: >
                  A human-readable explanation specific to this occurrence of
                  the problem.
                type: string
              instance:
                description: >
                  A URI reference that identifies the specific occurrence of the
                  problem. It may yield further information if dereferenced.
                type: string
                format: URI
        '406':
          description: >
            406 NOT ACCEPTABLE

            If the "Accept" header does not contain at least one name of a
            content type that is acceptable to the API producer, the API
            producer shall respond with this response code. The "ProblemDetails"
            structure may be omitted.
          headers:
            Content-Type:
              description: The MIME type of the body of the response.
              type: string
              maximum: 1
              minimum: 1
            WWW-Authenticate:
              description: >
                Challenge if the corresponding HTTP request has not provided
                authorization, or error details if the corresponding HTTP
                request has provided an invalid authorization token.
              type: string
              maximum: 1
              minimum: 0
            Version:
              description: |
                Version of the API used in the response.
              type: string
              maximum: 1
              minimum: 1
          schema:
            description: >
              The definition of the general "ProblemDetails" data structure from
              IETF RFC 7807 [19] is reproduced in this structure. Compared to
              the general framework defined in IETF RFC 7807 [19], the "status"
              and "detail" attributes are mandated to be included by the present
              document, to ensure that the response contains additional textual
              information about an error. IETF RFC 7807 [19] foresees
              extensibility of the "ProblemDetails" type. It is possible that
              particular APIs in the present document, or particular
              implementations, define extensions to define additional attributes
              that provide more information about the error. The description
              column only provides some explanation of the meaning to Facilitate
              understanding of the design. For a full description, see IETF RFC
              7807 [19].
            type: object
            required:
              - status
              - detail
            properties:
              type:
                description: >
                  A URI reference according to IETF RFC 3986 [5] that identifies
                  the problem type. It is encouraged that the URI provides
                  human-readable documentation for the problem (e.g. using HTML)
                  when dereferenced. When this member is not present, its value
                  is assumed to be "about:blank".
                type: string
                format: URI
              title:
                description: >
                  A short, human-readable summary of the problem type. It should
                  not change from occurrence to occurrence of the problem,
                  except for purposes of localization. If type is given and
                  other than "about:blank", this attribute shall also be
                  provided. A short, human-readable summary of the problem
                  type.  It SHOULD NOT change from occurrence to occurrence of
                  the problem, except for purposes of localization (e.g., using
                  proactive content negotiation; see [RFC7231], Section 3.4).
                type: string
              status:
                description: >
                  The HTTP status code for this occurrence of the problem. The
                  HTTP status code ([RFC7231], Section 6) generated by the
                  origin server for this occurrence of the problem.
                type: integer
              detail:
                description: >
                  A human-readable explanation specific to this occurrence of
                  the problem.
                type: string
              instance:
                description: >
                  A URI reference that identifies the specific occurrence of the
                  problem. It may yield further information if dereferenced.
                type: string
                format: URI
        '500':
          description: >
            500 INTERNAL SERVER ERROR

            If there is an application error not related to the client's input
            that cannot be easily mapped to any other HTTP response code ("catch
            all error"), the API producer shall respond with this response code.
            The "ProblemDetails" structure shall be provided, and shall include
            in the "detail" attribute more information about the source of the
            problem.
          headers:
            Content-Type:
              description: The MIME type of the body of the response.
              type: string
              maximum: 1
              minimum: 1
            WWW-Authenticate:
              description: >
                Challenge if the corresponding HTTP request has not provided
                authorization, or error details if the corresponding HTTP
                request has provided an invalid authorization token.
              type: string
              maximum: 1
              minimum: 0
            Version:
              description: |
                Version of the API used in the response.
              type: string
              maximum: 1
              minimum: 1
          schema:
            description: >
              The definition of the general "ProblemDetails" data structure from
              IETF RFC 7807 [19] is reproduced in this structure. Compared to
              the general framework defined in IETF RFC 7807 [19], the "status"
              and "detail" attributes are mandated to be included by the present
              document, to ensure that the response contains additional textual
              information about an error. IETF RFC 7807 [19] foresees
              extensibility of the "ProblemDetails" type. It is possible that
              particular APIs in the present document, or particular
              implementations, define extensions to define additional attributes
              that provide more information about the error. The description
              column only provides some explanation of the meaning to Facilitate
              understanding of the design. For a full description, see IETF RFC
              7807 [19].
            type: object
            required:
              - status
              - detail
            properties:
              type:
                description: >
                  A URI reference according to IETF RFC 3986 [5] that identifies
                  the problem type. It is encouraged that the URI provides
                  human-readable documentation for the problem (e.g. using HTML)
                  when dereferenced. When this member is not present, its value
                  is assumed to be "about:blank".
                type: string
                format: URI
              title:
                description: >
                  A short, human-readable summary of the problem type. It should
                  not change from occurrence to occurrence of the problem,
                  except for purposes of localization. If type is given and
                  other than "about:blank", this attribute shall also be
                  provided. A short, human-readable summary of the problem
                  type.  It SHOULD NOT change from occurrence to occurrence of
                  the problem, except for purposes of localization (e.g., using
                  proactive content negotiation; see [RFC7231], Section 3.4).
                type: string
              status:
                description: >
                  The HTTP status code for this occurrence of the problem. The
                  HTTP status code ([RFC7231], Section 6) generated by the
                  origin server for this occurrence of the problem.
                type: integer
              detail:
                description: >
                  A human-readable explanation specific to this occurrence of
                  the problem.
                type: string
              instance:
                description: >
                  A URI reference that identifies the specific occurrence of the
                  problem. It may yield further information if dereferenced.
                type: string
                format: URI
        '503':
          description: >
            503 SERVICE UNAVAILABLE

            If the API producer encounters an internal overload situation of
            itself or of a system it relies on, it should respond with this
            response code, following the provisions in IETF RFC 7231 for the use
            of the "Retry-After" HTTP header and for the alternative to refuse
            the connection. The "ProblemDetails" structure may be omitted.
          headers:
            Content-Type:
              description: The MIME type of the body of the response.
              type: string
              maximum: 1
              minimum: 1
            WWW-Authenticate:
              description: >
                Challenge if the corresponding HTTP request has not provided
                authorization, or error details if the corresponding HTTP
                request has provided an invalid authorization token.
              type: string
              maximum: 1
              minimum: 0
            Version:
              description: |
                Version of the API used in the response.
              type: string
              maximum: 1
              minimum: 1
          schema:
            description: >
              The definition of the general "ProblemDetails" data structure from
              IETF RFC 7807 [19] is reproduced in this structure. Compared to
              the general framework defined in IETF RFC 7807 [19], the "status"
              and "detail" attributes are mandated to be included by the present
              document, to ensure that the response contains additional textual
              information about an error. IETF RFC 7807 [19] foresees
              extensibility of the "ProblemDetails" type. It is possible that
              particular APIs in the present document, or particular
              implementations, define extensions to define additional attributes
              that provide more information about the error. The description
              column only provides some explanation of the meaning to Facilitate
              understanding of the design. For a full description, see IETF RFC
              7807 [19].
            type: object
            required:
              - status
              - detail
            properties:
              type:
                description: >
                  A URI reference according to IETF RFC 3986 [5] that identifies
                  the problem type. It is encouraged that the URI provides
                  human-readable documentation for the problem (e.g. using HTML)
                  when dereferenced. When this member is not present, its value
                  is assumed to be "about:blank".
                type: string
                format: URI
              title:
                description: >
                  A short, human-readable summary of the problem type. It should
                  not change from occurrence to occurrence of the problem,
                  except for purposes of localization. If type is given and
                  other than "about:blank", this attribute shall also be
                  provided. A short, human-readable summary of the problem
                  type.  It SHOULD NOT change from occurrence to occurrence of
                  the problem, except for purposes of localization (e.g., using
                  proactive content negotiation; see [RFC7231], Section 3.4).
                type: string
              status:
                description: >
                  The HTTP status code for this occurrence of the problem. The
                  HTTP status code ([RFC7231], Section 6) generated by the
                  origin server for this occurrence of the problem.
                type: integer
              detail:
                description: >
                  A human-readable explanation specific to this occurrence of
                  the problem.
                type: string
              instance:
                description: >
                  A URI reference that identifies the specific occurrence of the
                  problem. It may yield further information if dereferenced.
                type: string
                format: URI
  /URI_is_provided_by_the_client_when_creating_the_subscription-NsIdentifierCreationNotification:
    post:
      summary: Notify about NS lifecycle change
      description: >
        The POST method delivers a notification from the server to the client.
        This method shall support the URI query parameters, request and response
        data structures, and response codes, as specified in the Tables
        6.4.18.3.1-1 and 6.4.18.3.1-2.
      parameters:
        - name: NsIdentifierCreationNotification
          description: >
            A notification about the creation of a NS identifier and the related
            NS instance resource.
          in: body
          required: true
          schema:
            type: object
            required:
              - subscriptionId
              - nsInstanceId
            properties:
              notificationType:
                description: >
                  Discriminator for the different notification types. Shall be
                  set to "NsIdentifierDeletionNotification" for this
                  notification type.
                type: string
              subscriptionId:
                description: |
                  An identifier with the intention of being globally unique.
                type: string
              timestamp:
                description: >
                  Date-time stamp. Representation: String formatted according
                  toas defined by the date-time production in IETF RFC 3339.
                format: date-time
              nsInstanceId:
                description: |
                  An identifier with the intention of being globally unique.
                type: string
              _links:
                description: >
                  This type represents the links to resources that a
                  notification can contain.
                type: object
                required:
                  - nsInstance
                properties:
                  nsInstance:
                    description: >
                      This type represents a link to a resource in a
                      notification, using an absolute or relative URI.
                    type: object
                    required:
                      - href
                    properties:
                      href:
                        description: >
                          URI of a resource referenced from a notification.
                          Should be an absolute URI (i.e. a URI that contains
                          {apiRoot}), however, may be a relative URI (i.e. a URI
                          where the {apiRoot} part is omitted) if the {apiRoot}
                          information is not available.
                        type: string
                        format: url
                  subscription:
                    description: >
                      This type represents a link to a resource in a
                      notification, using an absolute or relative URI.
                    type: object
                    required:
                      - href
                    properties:
                      href:
                        description: >
                          URI of a resource referenced from a notification.
                          Should be an absolute URI (i.e. a URI that contains
                          {apiRoot}), however, may be a relative URI (i.e. a URI
                          where the {apiRoot} part is omitted) if the {apiRoot}
                          information is not available.
                        type: string
                        format: url
                  nslcmOpOcc:
                    description: >
                      This type represents a link to a resource in a
                      notification, using an absolute or relative URI.
                    type: object
                    required:
                      - href
                    properties:
                      href:
                        description: >
                          URI of a resource referenced from a notification.
                          Should be an absolute URI (i.e. a URI that contains
                          {apiRoot}), however, may be a relative URI (i.e. a URI
                          where the {apiRoot} part is omitted) if the {apiRoot}
                          information is not available.
                        type: string
                        format: url
        - name: Accept
          description: >
            Content-Types that are acceptable for the response. Reference: IETF
            RFC 7231
          in: header
          required: true
          type: string
        - name: Authorization
          description: |
            The authorization token for the request. Reference: IETF RFC 7235
          in: header
          required: false
          type: string
        - name: Content-Type
          description: |
            The MIME type of the body of the request. Reference: IETF RFC 7231
          in: header
          required: true
          type: string
        - name: Version
          description: |
            Version of the API requested to use when responding to this request.
          in: header
          required: true
          type: string
      responses:
        '204':
          description: >
            204 No Content

            Shall be returned when the notification has been delivered
            successfully.
          headers:
            WWW-Authenticate:
              type: string
              description: >
                Challenge if the corresponding HTTP request has not provided
                authorization, or error details if the corresponding HTTP
                request has provided an invalid authorization token.
              maximum: 1
              minimum: 0
            Version:
              description: |
                Version of the API used in the response.
              type: string
              maximum: 1
              minimum: 1
        '400':
          description: >
            400 BAD REQUEST

            400 code can be returned in the following specified cases, the
            specific cause has to be proper specified in the "ProblemDetails"
            structure to be returned.

            If the request is malformed or syntactically incorrect (e.g. if the
            request URI contains incorrect query parameters or the payload body
            contains a syntactically incorrect data structure), the API producer
            shall respond with this response code. The "ProblemDetails"
            structure shall be provided, and should include in the "detail"
            attribute more information about the source of the problem.

            If the response to a GET request which queries a container resource
            would be so big that the performance of the API producer is
            adversely affected, and the API producer does not support paging for
            the affected resource, it shall respond with this response code. The
            "ProblemDetails" structure shall be provided, and should include in
            the "detail" attribute more information about the source of the
            problem.

            If there is an application error related to the client's input that
            cannot be easily mapped to any other HTTP response code ("catch all
            error"), the API producer shall respond with this response code. The
            "ProblemDetails" structure shall be provided, and shall include in
            the "detail" attribute more information about the source of the
            problem.

            If the request contains a malformed access token, the API producer
            should respond with this response. The details of the error shall be
            returned in the WWW Authenticate HTTP header, as defined in IETF RFC
            6750 and IETF RFC 7235. The ProblemDetails structure may be
            provided.

            The use of this HTTP error response code described above is
            applicable to the use of the OAuth 2.0 for the authorization of API
            requests and notifications, as defined in clauses 4.5.3.3 and
            4.5.3.4.
          headers:
            Content-Type:
              description: The MIME type of the body of the response.
              type: string
              maximum: 1
              minimum: 1
            WWW-Authenticate:
              description: >
                Challenge if the corresponding HTTP request has not provided
                authorization, or error details if the corresponding HTTP
                request has provided an invalid authorization token.
              type: string
              maximum: 1
              minimum: 0
            Version:
              description: |
                Version of the API used in the response.
              type: string
              maximum: 1
              minimum: 1
          schema:
            description: >
              The definition of the general "ProblemDetails" data structure from
              IETF RFC 7807 [19] is reproduced in this structure. Compared to
              the general framework defined in IETF RFC 7807 [19], the "status"
              and "detail" attributes are mandated to be included by the present
              document, to ensure that the response contains additional textual
              information about an error. IETF RFC 7807 [19] foresees
              extensibility of the "ProblemDetails" type. It is possible that
              particular APIs in the present document, or particular
              implementations, define extensions to define additional attributes
              that provide more information about the error. The description
              column only provides some explanation of the meaning to Facilitate
              understanding of the design. For a full description, see IETF RFC
              7807 [19].
            type: object
            required:
              - status
              - detail
            properties:
              type:
                description: >
                  A URI reference according to IETF RFC 3986 [5] that identifies
                  the problem type. It is encouraged that the URI provides
                  human-readable documentation for the problem (e.g. using HTML)
                  when dereferenced. When this member is not present, its value
                  is assumed to be "about:blank".
                type: string
                format: URI
              title:
                description: >
                  A short, human-readable summary of the problem type. It should
                  not change from occurrence to occurrence of the problem,
                  except for purposes of localization. If type is given and
                  other than "about:blank", this attribute shall also be
                  provided. A short, human-readable summary of the problem
                  type.  It SHOULD NOT change from occurrence to occurrence of
                  the problem, except for purposes of localization (e.g., using
                  proactive content negotiation; see [RFC7231], Section 3.4).
                type: string
              status:
                description: >
                  The HTTP status code for this occurrence of the problem. The
                  HTTP status code ([RFC7231], Section 6) generated by the
                  origin server for this occurrence of the problem.
                type: integer
              detail:
                description: >
                  A human-readable explanation specific to this occurrence of
                  the problem.
                type: string
              instance:
                description: >
                  A URI reference that identifies the specific occurrence of the
                  problem. It may yield further information if dereferenced.
                type: string
                format: URI
        '401':
          description: >
            401 UNAUTHORIZED

            If the request contains no access token even though one is required,
            or if the request contains an authorization token that is invalid
            (e.g. expired or revoked), the API producer should respond with this
            response. The details of the error shall be returned in the
            WWW-Authenticate HTTP header, as defined in IETF RFC 6750 and IETF
            RFC 7235. The ProblemDetails structure may be provided.
          headers:
            Content-Type:
              description: The MIME type of the body of the response.
              type: string
              maximum: 1
              minimum: 1
            WWW-Authenticate:
              description: >
                Challenge if the corresponding HTTP request has not provided
                authorization, or error details if the corresponding HTTP
                request has provided an invalid authorization token.
              type: string
              maximum: 1
              minimum: 0
            Version:
              description: |
                Version of the API used in the response.
              type: string
              maximum: 1
              minimum: 1
          schema:
            description: >
              The definition of the general "ProblemDetails" data structure from
              IETF RFC 7807 [19] is reproduced in this structure. Compared to
              the general framework defined in IETF RFC 7807 [19], the "status"
              and "detail" attributes are mandated to be included by the present
              document, to ensure that the response contains additional textual
              information about an error. IETF RFC 7807 [19] foresees
              extensibility of the "ProblemDetails" type. It is possible that
              particular APIs in the present document, or particular
              implementations, define extensions to define additional attributes
              that provide more information about the error. The description
              column only provides some explanation of the meaning to Facilitate
              understanding of the design. For a full description, see IETF RFC
              7807 [19].
            type: object
            required:
              - status
              - detail
            properties:
              type:
                description: >
                  A URI reference according to IETF RFC 3986 [5] that identifies
                  the problem type. It is encouraged that the URI provides
                  human-readable documentation for the problem (e.g. using HTML)
                  when dereferenced. When this member is not present, its value
                  is assumed to be "about:blank".
                type: string
                format: URI
              title:
                description: >
                  A short, human-readable summary of the problem type. It should
                  not change from occurrence to occurrence of the problem,
                  except for purposes of localization. If type is given and
                  other than "about:blank", this attribute shall also be
                  provided. A short, human-readable summary of the problem
                  type.  It SHOULD NOT change from occurrence to occurrence of
                  the problem, except for purposes of localization (e.g., using
                  proactive content negotiation; see [RFC7231], Section 3.4).
                type: string
              status:
                description: >
                  The HTTP status code for this occurrence of the problem. The
                  HTTP status code ([RFC7231], Section 6) generated by the
                  origin server for this occurrence of the problem.
                type: integer
              detail:
                description: >
                  A human-readable explanation specific to this occurrence of
                  the problem.
                type: string
              instance:
                description: >
                  A URI reference that identifies the specific occurrence of the
                  problem. It may yield further information if dereferenced.
                type: string
                format: URI
        '403':
          description: >
            403 FORBIDDEN

            If the API consumer is not allowed to perform a particular request
            to a particular resource, the API producer shall respond with this
            response code. The "ProblemDetails" structure shall be provided. It
            should include in the "detail" attribute information about the
            source of the problem, and may indicate how to solve it.
          headers:
            Content-Type:
              description: The MIME type of the body of the response.
              type: string
              maximum: 1
              minimum: 1
            WWW-Authenticate:
              description: >
                Challenge if the corresponding HTTP request has not provided
                authorization, or error details if the corresponding HTTP
                request has provided an invalid authorization token.
              type: string
              maximum: 1
              minimum: 0
            Version:
              description: |
                Version of the API used in the response.
              type: string
              maximum: 1
              minimum: 1
          schema:
            description: >
              The definition of the general "ProblemDetails" data structure from
              IETF RFC 7807 [19] is reproduced in this structure. Compared to
              the general framework defined in IETF RFC 7807 [19], the "status"
              and "detail" attributes are mandated to be included by the present
              document, to ensure that the response contains additional textual
              information about an error. IETF RFC 7807 [19] foresees
              extensibility of the "ProblemDetails" type. It is possible that
              particular APIs in the present document, or particular
              implementations, define extensions to define additional attributes
              that provide more information about the error. The description
              column only provides some explanation of the meaning to Facilitate
              understanding of the design. For a full description, see IETF RFC
              7807 [19].
            type: object
            required:
              - status
              - detail
            properties:
              type:
                description: >
                  A URI reference according to IETF RFC 3986 [5] that identifies
                  the problem type. It is encouraged that the URI provides
                  human-readable documentation for the problem (e.g. using HTML)
                  when dereferenced. When this member is not present, its value
                  is assumed to be "about:blank".
                type: string
                format: URI
              title:
                description: >
                  A short, human-readable summary of the problem type. It should
                  not change from occurrence to occurrence of the problem,
                  except for purposes of localization. If type is given and
                  other than "about:blank", this attribute shall also be
                  provided. A short, human-readable summary of the problem
                  type.  It SHOULD NOT change from occurrence to occurrence of
                  the problem, except for purposes of localization (e.g., using
                  proactive content negotiation; see [RFC7231], Section 3.4).
                type: string
              status:
                description: >
                  The HTTP status code for this occurrence of the problem. The
                  HTTP status code ([RFC7231], Section 6) generated by the
                  origin server for this occurrence of the problem.
                type: integer
              detail:
                description: >
                  A human-readable explanation specific to this occurrence of
                  the problem.
                type: string
              instance:
                description: >
                  A URI reference that identifies the specific occurrence of the
                  problem. It may yield further information if dereferenced.
                type: string
                format: URI
        '404':
          description: >
            404 NOT FOUND

            If the API producer did not find a current representation for the
            resource addressed by the URI passed in the request or is not
            willing to disclose that one exists, it shall respond with this
            response code. The "ProblemDetails" structure may be provided,
            including in the "detail" attribute information about the source of
            the problem, e.g. a wrong resource URI variable.

            This response code is not appropriate in case the resource addressed
            by the URI is a container resource which is designed to contain
            child resources, but does not contain any child resource at the time
            the request is received. For a GET request to an existing empty
            container resource, a typical response contains a 200 OK response
            code and a payload body with an empty array.
          headers:
            Content-Type:
              description: The MIME type of the body of the response.
              type: string
              maximum: 1
              minimum: 1
            WWW-Authenticate:
              description: >
                Challenge if the corresponding HTTP request has not provided
                authorization, or error details if the corresponding HTTP
                request has provided an invalid authorization token.
              type: string
              maximum: 1
              minimum: 0
            Version:
              description: |
                Version of the API used in the response.
              type: string
              maximum: 1
              minimum: 1
          schema:
            description: >
              The definition of the general "ProblemDetails" data structure from
              IETF RFC 7807 [19] is reproduced in this structure. Compared to
              the general framework defined in IETF RFC 7807 [19], the "status"
              and "detail" attributes are mandated to be included by the present
              document, to ensure that the response contains additional textual
              information about an error. IETF RFC 7807 [19] foresees
              extensibility of the "ProblemDetails" type. It is possible that
              particular APIs in the present document, or particular
              implementations, define extensions to define additional attributes
              that provide more information about the error. The description
              column only provides some explanation of the meaning to Facilitate
              understanding of the design. For a full description, see IETF RFC
              7807 [19].
            type: object
            required:
              - status
              - detail
            properties:
              type:
                description: >
                  A URI reference according to IETF RFC 3986 [5] that identifies
                  the problem type. It is encouraged that the URI provides
                  human-readable documentation for the problem (e.g. using HTML)
                  when dereferenced. When this member is not present, its value
                  is assumed to be "about:blank".
                type: string
                format: URI
              title:
                description: >
                  A short, human-readable summary of the problem type. It should
                  not change from occurrence to occurrence of the problem,
                  except for purposes of localization. If type is given and
                  other than "about:blank", this attribute shall also be
                  provided. A short, human-readable summary of the problem
                  type.  It SHOULD NOT change from occurrence to occurrence of
                  the problem, except for purposes of localization (e.g., using
                  proactive content negotiation; see [RFC7231], Section 3.4).
                type: string
              status:
                description: >
                  The HTTP status code for this occurrence of the problem. The
                  HTTP status code ([RFC7231], Section 6) generated by the
                  origin server for this occurrence of the problem.
                type: integer
              detail:
                description: >
                  A human-readable explanation specific to this occurrence of
                  the problem.
                type: string
              instance:
                description: >
                  A URI reference that identifies the specific occurrence of the
                  problem. It may yield further information if dereferenced.
                type: string
                format: URI
        '405':
          description: >
            405 METHOD NOT ALLOWED

            If a particular HTTP method is not supported for a particular
            resource, the API producer shall respond with this response code.
            The "ProblemDetails" structure may be omitted.
          headers:
            Content-Type:
              description: The MIME type of the body of the response.
              type: string
              maximum: 1
              minimum: 1
            WWW-Authenticate:
              description: >
                Challenge if the corresponding HTTP request has not provided
                authorization, or error details if the corresponding HTTP
                request has provided an invalid authorization token.
              type: string
              maximum: 1
              minimum: 0
            Version:
              description: |
                Version of the API used in the response.
              type: string
              maximum: 1
              minimum: 1
          schema:
            description: >
              The definition of the general "ProblemDetails" data structure from
              IETF RFC 7807 [19] is reproduced in this structure. Compared to
              the general framework defined in IETF RFC 7807 [19], the "status"
              and "detail" attributes are mandated to be included by the present
              document, to ensure that the response contains additional textual
              information about an error. IETF RFC 7807 [19] foresees
              extensibility of the "ProblemDetails" type. It is possible that
              particular APIs in the present document, or particular
              implementations, define extensions to define additional attributes
              that provide more information about the error. The description
              column only provides some explanation of the meaning to Facilitate
              understanding of the design. For a full description, see IETF RFC
              7807 [19].
            type: object
            required:
              - status
              - detail
            properties:
              type:
                description: >
                  A URI reference according to IETF RFC 3986 [5] that identifies
                  the problem type. It is encouraged that the URI provides
                  human-readable documentation for the problem (e.g. using HTML)
                  when dereferenced. When this member is not present, its value
                  is assumed to be "about:blank".
                type: string
                format: URI
              title:
                description: >
                  A short, human-readable summary of the problem type. It should
                  not change from occurrence to occurrence of the problem,
                  except for purposes of localization. If type is given and
                  other than "about:blank", this attribute shall also be
                  provided. A short, human-readable summary of the problem
                  type.  It SHOULD NOT change from occurrence to occurrence of
                  the problem, except for purposes of localization (e.g., using
                  proactive content negotiation; see [RFC7231], Section 3.4).
                type: string
              status:
                description: >
                  The HTTP status code for this occurrence of the problem. The
                  HTTP status code ([RFC7231], Section 6) generated by the
                  origin server for this occurrence of the problem.
                type: integer
              detail:
                description: >
                  A human-readable explanation specific to this occurrence of
                  the problem.
                type: string
              instance:
                description: >
                  A URI reference that identifies the specific occurrence of the
                  problem. It may yield further information if dereferenced.
                type: string
                format: URI
        '406':
          description: >
            406 NOT ACCEPTABLE

            If the "Accept" header does not contain at least one name of a
            content type that is acceptable to the API producer, the API
            producer shall respond with this response code. The "ProblemDetails"
            structure may be omitted.
          headers:
            Content-Type:
              description: The MIME type of the body of the response.
              type: string
              maximum: 1
              minimum: 1
            WWW-Authenticate:
              description: >
                Challenge if the corresponding HTTP request has not provided
                authorization, or error details if the corresponding HTTP
                request has provided an invalid authorization token.
              type: string
              maximum: 1
              minimum: 0
            Version:
              description: |
                Version of the API used in the response.
              type: string
              maximum: 1
              minimum: 1
          schema:
            description: >
              The definition of the general "ProblemDetails" data structure from
              IETF RFC 7807 [19] is reproduced in this structure. Compared to
              the general framework defined in IETF RFC 7807 [19], the "status"
              and "detail" attributes are mandated to be included by the present
              document, to ensure that the response contains additional textual
              information about an error. IETF RFC 7807 [19] foresees
              extensibility of the "ProblemDetails" type. It is possible that
              particular APIs in the present document, or particular
              implementations, define extensions to define additional attributes
              that provide more information about the error. The description
              column only provides some explanation of the meaning to Facilitate
              understanding of the design. For a full description, see IETF RFC
              7807 [19].
            type: object
            required:
              - status
              - detail
            properties:
              type:
                description: >
                  A URI reference according to IETF RFC 3986 [5] that identifies
                  the problem type. It is encouraged that the URI provides
                  human-readable documentation for the problem (e.g. using HTML)
                  when dereferenced. When this member is not present, its value
                  is assumed to be "about:blank".
                type: string
                format: URI
              title:
                description: >
                  A short, human-readable summary of the problem type. It should
                  not change from occurrence to occurrence of the problem,
                  except for purposes of localization. If type is given and
                  other than "about:blank", this attribute shall also be
                  provided. A short, human-readable summary of the problem
                  type.  It SHOULD NOT change from occurrence to occurrence of
                  the problem, except for purposes of localization (e.g., using
                  proactive content negotiation; see [RFC7231], Section 3.4).
                type: string
              status:
                description: >
                  The HTTP status code for this occurrence of the problem. The
                  HTTP status code ([RFC7231], Section 6) generated by the
                  origin server for this occurrence of the problem.
                type: integer
              detail:
                description: >
                  A human-readable explanation specific to this occurrence of
                  the problem.
                type: string
              instance:
                description: >
                  A URI reference that identifies the specific occurrence of the
                  problem. It may yield further information if dereferenced.
                type: string
                format: URI
        '500':
          description: >
            500 INTERNAL SERVER ERROR

            If there is an application error not related to the client's input
            that cannot be easily mapped to any other HTTP response code ("catch
            all error"), the API producer shall respond with this response code.
            The "ProblemDetails" structure shall be provided, and shall include
            in the "detail" attribute more information about the source of the
            problem.
          headers:
            Content-Type:
              description: The MIME type of the body of the response.
              type: string
              maximum: 1
              minimum: 1
            WWW-Authenticate:
              description: >
                Challenge if the corresponding HTTP request has not provided
                authorization, or error details if the corresponding HTTP
                request has provided an invalid authorization token.
              type: string
              maximum: 1
              minimum: 0
            Version:
              description: |
                Version of the API used in the response.
              type: string
              maximum: 1
              minimum: 1
          schema:
            description: >
              The definition of the general "ProblemDetails" data structure from
              IETF RFC 7807 [19] is reproduced in this structure. Compared to
              the general framework defined in IETF RFC 7807 [19], the "status"
              and "detail" attributes are mandated to be included by the present
              document, to ensure that the response contains additional textual
              information about an error. IETF RFC 7807 [19] foresees
              extensibility of the "ProblemDetails" type. It is possible that
              particular APIs in the present document, or particular
              implementations, define extensions to define additional attributes
              that provide more information about the error. The description
              column only provides some explanation of the meaning to Facilitate
              understanding of the design. For a full description, see IETF RFC
              7807 [19].
            type: object
            required:
              - status
              - detail
            properties:
              type:
                description: >
                  A URI reference according to IETF RFC 3986 [5] that identifies
                  the problem type. It is encouraged that the URI provides
                  human-readable documentation for the problem (e.g. using HTML)
                  when dereferenced. When this member is not present, its value
                  is assumed to be "about:blank".
                type: string
                format: URI
              title:
                description: >
                  A short, human-readable summary of the problem type. It should
                  not change from occurrence to occurrence of the problem,
                  except for purposes of localization. If type is given and
                  other than "about:blank", this attribute shall also be
                  provided. A short, human-readable summary of the problem
                  type.  It SHOULD NOT change from occurrence to occurrence of
                  the problem, except for purposes of localization (e.g., using
                  proactive content negotiation; see [RFC7231], Section 3.4).
                type: string
              status:
                description: >
                  The HTTP status code for this occurrence of the problem. The
                  HTTP status code ([RFC7231], Section 6) generated by the
                  origin server for this occurrence of the problem.
                type: integer
              detail:
                description: >
                  A human-readable explanation specific to this occurrence of
                  the problem.
                type: string
              instance:
                description: >
                  A URI reference that identifies the specific occurrence of the
                  problem. It may yield further information if dereferenced.
                type: string
                format: URI
        '503':
          description: >
            503 SERVICE UNAVAILABLE

            If the API producer encounters an internal overload situation of
            itself or of a system it relies on, it should respond with this
            response code, following the provisions in IETF RFC 7231 for the use
            of the "Retry-After" HTTP header and for the alternative to refuse
            the connection. The "ProblemDetails" structure may be omitted.
          headers:
            Content-Type:
              description: The MIME type of the body of the response.
              type: string
              maximum: 1
              minimum: 1
            WWW-Authenticate:
              description: >
                Challenge if the corresponding HTTP request has not provided
                authorization, or error details if the corresponding HTTP
                request has provided an invalid authorization token.
              type: string
              maximum: 1
              minimum: 0
            Version:
              description: |
                Version of the API used in the response.
              type: string
              maximum: 1
              minimum: 1
          schema:
            description: >
              The definition of the general "ProblemDetails" data structure from
              IETF RFC 7807 [19] is reproduced in this structure. Compared to
              the general framework defined in IETF RFC 7807 [19], the "status"
              and "detail" attributes are mandated to be included by the present
              document, to ensure that the response contains additional textual
              information about an error. IETF RFC 7807 [19] foresees
              extensibility of the "ProblemDetails" type. It is possible that
              particular APIs in the present document, or particular
              implementations, define extensions to define additional attributes
              that provide more information about the error. The description
              column only provides some explanation of the meaning to Facilitate
              understanding of the design. For a full description, see IETF RFC
              7807 [19].
            type: object
            required:
              - status
              - detail
            properties:
              type:
                description: >
                  A URI reference according to IETF RFC 3986 [5] that identifies
                  the problem type. It is encouraged that the URI provides
                  human-readable documentation for the problem (e.g. using HTML)
                  when dereferenced. When this member is not present, its value
                  is assumed to be "about:blank".
                type: string
                format: URI
              title:
                description: >
                  A short, human-readable summary of the problem type. It should
                  not change from occurrence to occurrence of the problem,
                  except for purposes of localization. If type is given and
                  other than "about:blank", this attribute shall also be
                  provided. A short, human-readable summary of the problem
                  type.  It SHOULD NOT change from occurrence to occurrence of
                  the problem, except for purposes of localization (e.g., using
                  proactive content negotiation; see [RFC7231], Section 3.4).
                type: string
              status:
                description: >
                  The HTTP status code for this occurrence of the problem. The
                  HTTP status code ([RFC7231], Section 6) generated by the
                  origin server for this occurrence of the problem.
                type: integer
              detail:
                description: >
                  A human-readable explanation specific to this occurrence of
                  the problem.
                type: string
              instance:
                description: >
                  A URI reference that identifies the specific occurrence of the
                  problem. It may yield further information if dereferenced.
                type: string
                format: URI
    get:
      summary: Test the notification endpoint.
      description: >
        Query NS Instances.

        The GET method queries information about multiple NS instances. This
        method shall support the URI query parameters, request and response data
        structures, and response codes, as specified in the Tables 6.4.2.3.2-1
        and 6.4.2.3.2-2.
      parameters:
        - name: Accept
          description: >
            Content-Types that are acceptable for the response. Reference: IETF
            RFC 7231
          in: header
          required: true
          type: string
        - name: Authorization
          description: |
            The authorization token for the request. Reference: IETF RFC 7235
          in: header
          required: false
          type: string
        - name: Version
          description: |
            Version of the API requested to use when responding to this request.
          in: header
          required: true
          type: string
      responses:
        '204':
          description: >
            204 No Content

            Shall be returned when the notification endpoint has been tested
            successfully. The response body shall be empty.
          headers:
            WWW-Authenticate:
              type: string
              description: >
                Challenge if the corresponding HTTP request has not provided
                authorization, or error details if the corresponding HTTP
                request has provided an invalid authorization token.
              maximum: 1
              minimum: 0
            Version:
              description: |
                Version of the API used in the response.
              type: string
              maximum: 1
              minimum: 1
        '400':
          description: >
            400 BAD REQUEST

            400 code can be returned in the following specified cases, the
            specific cause has to be proper specified in the "ProblemDetails"
            structure to be returned.

            If the request is malformed or syntactically incorrect (e.g. if the
            request URI contains incorrect query parameters or the payload body
            contains a syntactically incorrect data structure), the API producer
            shall respond with this response code. The "ProblemDetails"
            structure shall be provided, and should include in the "detail"
            attribute more information about the source of the problem.

            If the response to a GET request which queries a container resource
            would be so big that the performance of the API producer is
            adversely affected, and the API producer does not support paging for
            the affected resource, it shall respond with this response code. The
            "ProblemDetails" structure shall be provided, and should include in
            the "detail" attribute more information about the source of the
            problem.

            If there is an application error related to the client's input that
            cannot be easily mapped to any other HTTP response code ("catch all
            error"), the API producer shall respond with this response code. The
            "ProblemDetails" structure shall be provided, and shall include in
            the "detail" attribute more information about the source of the
            problem.

            If the request contains a malformed access token, the API producer
            should respond with this response. The details of the error shall be
            returned in the WWW Authenticate HTTP header, as defined in IETF RFC
            6750 and IETF RFC 7235. The ProblemDetails structure may be
            provided.

            The use of this HTTP error response code described above is
            applicable to the use of the OAuth 2.0 for the authorization of API
            requests and notifications, as defined in clauses 4.5.3.3 and
            4.5.3.4.
          headers:
            Content-Type:
              description: The MIME type of the body of the response.
              type: string
              maximum: 1
              minimum: 1
            WWW-Authenticate:
              description: >
                Challenge if the corresponding HTTP request has not provided
                authorization, or error details if the corresponding HTTP
                request has provided an invalid authorization token.
              type: string
              maximum: 1
              minimum: 0
            Version:
              description: |
                Version of the API used in the response.
              type: string
              maximum: 1
              minimum: 1
          schema:
            description: >
              The definition of the general "ProblemDetails" data structure from
              IETF RFC 7807 [19] is reproduced in this structure. Compared to
              the general framework defined in IETF RFC 7807 [19], the "status"
              and "detail" attributes are mandated to be included by the present
              document, to ensure that the response contains additional textual
              information about an error. IETF RFC 7807 [19] foresees
              extensibility of the "ProblemDetails" type. It is possible that
              particular APIs in the present document, or particular
              implementations, define extensions to define additional attributes
              that provide more information about the error. The description
              column only provides some explanation of the meaning to Facilitate
              understanding of the design. For a full description, see IETF RFC
              7807 [19].
            type: object
            required:
              - status
              - detail
            properties:
              type:
                description: >
                  A URI reference according to IETF RFC 3986 [5] that identifies
                  the problem type. It is encouraged that the URI provides
                  human-readable documentation for the problem (e.g. using HTML)
                  when dereferenced. When this member is not present, its value
                  is assumed to be "about:blank".
                type: string
                format: URI
              title:
                description: >
                  A short, human-readable summary of the problem type. It should
                  not change from occurrence to occurrence of the problem,
                  except for purposes of localization. If type is given and
                  other than "about:blank", this attribute shall also be
                  provided. A short, human-readable summary of the problem
                  type.  It SHOULD NOT change from occurrence to occurrence of
                  the problem, except for purposes of localization (e.g., using
                  proactive content negotiation; see [RFC7231], Section 3.4).
                type: string
              status:
                description: >
                  The HTTP status code for this occurrence of the problem. The
                  HTTP status code ([RFC7231], Section 6) generated by the
                  origin server for this occurrence of the problem.
                type: integer
              detail:
                description: >
                  A human-readable explanation specific to this occurrence of
                  the problem.
                type: string
              instance:
                description: >
                  A URI reference that identifies the specific occurrence of the
                  problem. It may yield further information if dereferenced.
                type: string
                format: URI
        '401':
          description: >
            401 UNAUTHORIZED

            If the request contains no access token even though one is required,
            or if the request contains an authorization token that is invalid
            (e.g. expired or revoked), the API producer should respond with this
            response. The details of the error shall be returned in the
            WWW-Authenticate HTTP header, as defined in IETF RFC 6750 and IETF
            RFC 7235. The ProblemDetails structure may be provided.
          headers:
            Content-Type:
              description: The MIME type of the body of the response.
              type: string
              maximum: 1
              minimum: 1
            WWW-Authenticate:
              description: >
                Challenge if the corresponding HTTP request has not provided
                authorization, or error details if the corresponding HTTP
                request has provided an invalid authorization token.
              type: string
              maximum: 1
              minimum: 0
            Version:
              description: |
                Version of the API used in the response.
              type: string
              maximum: 1
              minimum: 1
          schema:
            description: >
              The definition of the general "ProblemDetails" data structure from
              IETF RFC 7807 [19] is reproduced in this structure. Compared to
              the general framework defined in IETF RFC 7807 [19], the "status"
              and "detail" attributes are mandated to be included by the present
              document, to ensure that the response contains additional textual
              information about an error. IETF RFC 7807 [19] foresees
              extensibility of the "ProblemDetails" type. It is possible that
              particular APIs in the present document, or particular
              implementations, define extensions to define additional attributes
              that provide more information about the error. The description
              column only provides some explanation of the meaning to Facilitate
              understanding of the design. For a full description, see IETF RFC
              7807 [19].
            type: object
            required:
              - status
              - detail
            properties:
              type:
                description: >
                  A URI reference according to IETF RFC 3986 [5] that identifies
                  the problem type. It is encouraged that the URI provides
                  human-readable documentation for the problem (e.g. using HTML)
                  when dereferenced. When this member is not present, its value
                  is assumed to be "about:blank".
                type: string
                format: URI
              title:
                description: >
                  A short, human-readable summary of the problem type. It should
                  not change from occurrence to occurrence of the problem,
                  except for purposes of localization. If type is given and
                  other than "about:blank", this attribute shall also be
                  provided. A short, human-readable summary of the problem
                  type.  It SHOULD NOT change from occurrence to occurrence of
                  the problem, except for purposes of localization (e.g., using
                  proactive content negotiation; see [RFC7231], Section 3.4).
                type: string
              status:
                description: >
                  The HTTP status code for this occurrence of the problem. The
                  HTTP status code ([RFC7231], Section 6) generated by the
                  origin server for this occurrence of the problem.
                type: integer
              detail:
                description: >
                  A human-readable explanation specific to this occurrence of
                  the problem.
                type: string
              instance:
                description: >
                  A URI reference that identifies the specific occurrence of the
                  problem. It may yield further information if dereferenced.
                type: string
                format: URI
        '403':
          description: >
            403 FORBIDDEN

            If the API consumer is not allowed to perform a particular request
            to a particular resource, the API producer shall respond with this
            response code. The "ProblemDetails" structure shall be provided. It
            should include in the "detail" attribute information about the
            source of the problem, and may indicate how to solve it.
          headers:
            Content-Type:
              description: The MIME type of the body of the response.
              type: string
              maximum: 1
              minimum: 1
            WWW-Authenticate:
              description: >
                Challenge if the corresponding HTTP request has not provided
                authorization, or error details if the corresponding HTTP
                request has provided an invalid authorization token.
              type: string
              maximum: 1
              minimum: 0
            Version:
              description: |
                Version of the API used in the response.
              type: string
              maximum: 1
              minimum: 1
          schema:
            description: >
              The definition of the general "ProblemDetails" data structure from
              IETF RFC 7807 [19] is reproduced in this structure. Compared to
              the general framework defined in IETF RFC 7807 [19], the "status"
              and "detail" attributes are mandated to be included by the present
              document, to ensure that the response contains additional textual
              information about an error. IETF RFC 7807 [19] foresees
              extensibility of the "ProblemDetails" type. It is possible that
              particular APIs in the present document, or particular
              implementations, define extensions to define additional attributes
              that provide more information about the error. The description
              column only provides some explanation of the meaning to Facilitate
              understanding of the design. For a full description, see IETF RFC
              7807 [19].
            type: object
            required:
              - status
              - detail
            properties:
              type:
                description: >
                  A URI reference according to IETF RFC 3986 [5] that identifies
                  the problem type. It is encouraged that the URI provides
                  human-readable documentation for the problem (e.g. using HTML)
                  when dereferenced. When this member is not present, its value
                  is assumed to be "about:blank".
                type: string
                format: URI
              title:
                description: >
                  A short, human-readable summary of the problem type. It should
                  not change from occurrence to occurrence of the problem,
                  except for purposes of localization. If type is given and
                  other than "about:blank", this attribute shall also be
                  provided. A short, human-readable summary of the problem
                  type.  It SHOULD NOT change from occurrence to occurrence of
                  the problem, except for purposes of localization (e.g., using
                  proactive content negotiation; see [RFC7231], Section 3.4).
                type: string
              status:
                description: >
                  The HTTP status code for this occurrence of the problem. The
                  HTTP status code ([RFC7231], Section 6) generated by the
                  origin server for this occurrence of the problem.
                type: integer
              detail:
                description: >
                  A human-readable explanation specific to this occurrence of
                  the problem.
                type: string
              instance:
                description: >
                  A URI reference that identifies the specific occurrence of the
                  problem. It may yield further information if dereferenced.
                type: string
                format: URI
        '404':
          description: >
            404 NOT FOUND

            If the API producer did not find a current representation for the
            resource addressed by the URI passed in the request or is not
            willing to disclose that one exists, it shall respond with this
            response code. The "ProblemDetails" structure may be provided,
            including in the "detail" attribute information about the source of
            the problem, e.g. a wrong resource URI variable.

            This response code is not appropriate in case the resource addressed
            by the URI is a container resource which is designed to contain
            child resources, but does not contain any child resource at the time
            the request is received. For a GET request to an existing empty
            container resource, a typical response contains a 200 OK response
            code and a payload body with an empty array.
          headers:
            Content-Type:
              description: The MIME type of the body of the response.
              type: string
              maximum: 1
              minimum: 1
            WWW-Authenticate:
              description: >
                Challenge if the corresponding HTTP request has not provided
                authorization, or error details if the corresponding HTTP
                request has provided an invalid authorization token.
              type: string
              maximum: 1
              minimum: 0
            Version:
              description: |
                Version of the API used in the response.
              type: string
              maximum: 1
              minimum: 1
          schema:
            description: >
              The definition of the general "ProblemDetails" data structure from
              IETF RFC 7807 [19] is reproduced in this structure. Compared to
              the general framework defined in IETF RFC 7807 [19], the "status"
              and "detail" attributes are mandated to be included by the present
              document, to ensure that the response contains additional textual
              information about an error. IETF RFC 7807 [19] foresees
              extensibility of the "ProblemDetails" type. It is possible that
              particular APIs in the present document, or particular
              implementations, define extensions to define additional attributes
              that provide more information about the error. The description
              column only provides some explanation of the meaning to Facilitate
              understanding of the design. For a full description, see IETF RFC
              7807 [19].
            type: object
            required:
              - status
              - detail
            properties:
              type:
                description: >
                  A URI reference according to IETF RFC 3986 [5] that identifies
                  the problem type. It is encouraged that the URI provides
                  human-readable documentation for the problem (e.g. using HTML)
                  when dereferenced. When this member is not present, its value
                  is assumed to be "about:blank".
                type: string
                format: URI
              title:
                description: >
                  A short, human-readable summary of the problem type. It should
                  not change from occurrence to occurrence of the problem,
                  except for purposes of localization. If type is given and
                  other than "about:blank", this attribute shall also be
                  provided. A short, human-readable summary of the problem
                  type.  It SHOULD NOT change from occurrence to occurrence of
                  the problem, except for purposes of localization (e.g., using
                  proactive content negotiation; see [RFC7231], Section 3.4).
                type: string
              status:
                description: >
                  The HTTP status code for this occurrence of the problem. The
                  HTTP status code ([RFC7231], Section 6) generated by the
                  origin server for this occurrence of the problem.
                type: integer
              detail:
                description: >
                  A human-readable explanation specific to this occurrence of
                  the problem.
                type: string
              instance:
                description: >
                  A URI reference that identifies the specific occurrence of the
                  problem. It may yield further information if dereferenced.
                type: string
                format: URI
        '405':
          description: >
            405 METHOD NOT ALLOWED

            If a particular HTTP method is not supported for a particular
            resource, the API producer shall respond with this response code.
            The "ProblemDetails" structure may be omitted.
          headers:
            Content-Type:
              description: The MIME type of the body of the response.
              type: string
              maximum: 1
              minimum: 1
            WWW-Authenticate:
              description: >
                Challenge if the corresponding HTTP request has not provided
                authorization, or error details if the corresponding HTTP
                request has provided an invalid authorization token.
              type: string
              maximum: 1
              minimum: 0
            Version:
              description: |
                Version of the API used in the response.
              type: string
              maximum: 1
              minimum: 1
          schema:
            description: >
              The definition of the general "ProblemDetails" data structure from
              IETF RFC 7807 [19] is reproduced in this structure. Compared to
              the general framework defined in IETF RFC 7807 [19], the "status"
              and "detail" attributes are mandated to be included by the present
              document, to ensure that the response contains additional textual
              information about an error. IETF RFC 7807 [19] foresees
              extensibility of the "ProblemDetails" type. It is possible that
              particular APIs in the present document, or particular
              implementations, define extensions to define additional attributes
              that provide more information about the error. The description
              column only provides some explanation of the meaning to Facilitate
              understanding of the design. For a full description, see IETF RFC
              7807 [19].
            type: object
            required:
              - status
              - detail
            properties:
              type:
                description: >
                  A URI reference according to IETF RFC 3986 [5] that identifies
                  the problem type. It is encouraged that the URI provides
                  human-readable documentation for the problem (e.g. using HTML)
                  when dereferenced. When this member is not present, its value
                  is assumed to be "about:blank".
                type: string
                format: URI
              title:
                description: >
                  A short, human-readable summary of the problem type. It should
                  not change from occurrence to occurrence of the problem,
                  except for purposes of localization. If type is given and
                  other than "about:blank", this attribute shall also be
                  provided. A short, human-readable summary of the problem
                  type.  It SHOULD NOT change from occurrence to occurrence of
                  the problem, except for purposes of localization (e.g., using
                  proactive content negotiation; see [RFC7231], Section 3.4).
                type: string
              status:
                description: >
                  The HTTP status code for this occurrence of the problem. The
                  HTTP status code ([RFC7231], Section 6) generated by the
                  origin server for this occurrence of the problem.
                type: integer
              detail:
                description: >
                  A human-readable explanation specific to this occurrence of
                  the problem.
                type: string
              instance:
                description: >
                  A URI reference that identifies the specific occurrence of the
                  problem. It may yield further information if dereferenced.
                type: string
                format: URI
        '406':
          description: >
            406 NOT ACCEPTABLE

            If the "Accept" header does not contain at least one name of a
            content type that is acceptable to the API producer, the API
            producer shall respond with this response code. The "ProblemDetails"
            structure may be omitted.
          headers:
            Content-Type:
              description: The MIME type of the body of the response.
              type: string
              maximum: 1
              minimum: 1
            WWW-Authenticate:
              description: >
                Challenge if the corresponding HTTP request has not provided
                authorization, or error details if the corresponding HTTP
                request has provided an invalid authorization token.
              type: string
              maximum: 1
              minimum: 0
            Version:
              description: |
                Version of the API used in the response.
              type: string
              maximum: 1
              minimum: 1
          schema:
            description: >
              The definition of the general "ProblemDetails" data structure from
              IETF RFC 7807 [19] is reproduced in this structure. Compared to
              the general framework defined in IETF RFC 7807 [19], the "status"
              and "detail" attributes are mandated to be included by the present
              document, to ensure that the response contains additional textual
              information about an error. IETF RFC 7807 [19] foresees
              extensibility of the "ProblemDetails" type. It is possible that
              particular APIs in the present document, or particular
              implementations, define extensions to define additional attributes
              that provide more information about the error. The description
              column only provides some explanation of the meaning to Facilitate
              understanding of the design. For a full description, see IETF RFC
              7807 [19].
            type: object
            required:
              - status
              - detail
            properties:
              type:
                description: >
                  A URI reference according to IETF RFC 3986 [5] that identifies
                  the problem type. It is encouraged that the URI provides
                  human-readable documentation for the problem (e.g. using HTML)
                  when dereferenced. When this member is not present, its value
                  is assumed to be "about:blank".
                type: string
                format: URI
              title:
                description: >
                  A short, human-readable summary of the problem type. It should
                  not change from occurrence to occurrence of the problem,
                  except for purposes of localization. If type is given and
                  other than "about:blank", this attribute shall also be
                  provided. A short, human-readable summary of the problem
                  type.  It SHOULD NOT change from occurrence to occurrence of
                  the problem, except for purposes of localization (e.g., using
                  proactive content negotiation; see [RFC7231], Section 3.4).
                type: string
              status:
                description: >
                  The HTTP status code for this occurrence of the problem. The
                  HTTP status code ([RFC7231], Section 6) generated by the
                  origin server for this occurrence of the problem.
                type: integer
              detail:
                description: >
                  A human-readable explanation specific to this occurrence of
                  the problem.
                type: string
              instance:
                description: >
                  A URI reference that identifies the specific occurrence of the
                  problem. It may yield further information if dereferenced.
                type: string
                format: URI
        '500':
          description: >
            500 INTERNAL SERVER ERROR

            If there is an application error not related to the client's input
            that cannot be easily mapped to any other HTTP response code ("catch
            all error"), the API producer shall respond with this response code.
            The "ProblemDetails" structure shall be provided, and shall include
            in the "detail" attribute more information about the source of the
            problem.
          headers:
            Content-Type:
              description: The MIME type of the body of the response.
              type: string
              maximum: 1
              minimum: 1
            WWW-Authenticate:
              description: >
                Challenge if the corresponding HTTP request has not provided
                authorization, or error details if the corresponding HTTP
                request has provided an invalid authorization token.
              type: string
              maximum: 1
              minimum: 0
            Version:
              description: |
                Version of the API used in the response.
              type: string
              maximum: 1
              minimum: 1
          schema:
            description: >
              The definition of the general "ProblemDetails" data structure from
              IETF RFC 7807 [19] is reproduced in this structure. Compared to
              the general framework defined in IETF RFC 7807 [19], the "status"
              and "detail" attributes are mandated to be included by the present
              document, to ensure that the response contains additional textual
              information about an error. IETF RFC 7807 [19] foresees
              extensibility of the "ProblemDetails" type. It is possible that
              particular APIs in the present document, or particular
              implementations, define extensions to define additional attributes
              that provide more information about the error. The description
              column only provides some explanation of the meaning to Facilitate
              understanding of the design. For a full description, see IETF RFC
              7807 [19].
            type: object
            required:
              - status
              - detail
            properties:
              type:
                description: >
                  A URI reference according to IETF RFC 3986 [5] that identifies
                  the problem type. It is encouraged that the URI provides
                  human-readable documentation for the problem (e.g. using HTML)
                  when dereferenced. When this member is not present, its value
                  is assumed to be "about:blank".
                type: string
                format: URI
              title:
                description: >
                  A short, human-readable summary of the problem type. It should
                  not change from occurrence to occurrence of the problem,
                  except for purposes of localization. If type is given and
                  other than "about:blank", this attribute shall also be
                  provided. A short, human-readable summary of the problem
                  type.  It SHOULD NOT change from occurrence to occurrence of
                  the problem, except for purposes of localization (e.g., using
                  proactive content negotiation; see [RFC7231], Section 3.4).
                type: string
              status:
                description: >
                  The HTTP status code for this occurrence of the problem. The
                  HTTP status code ([RFC7231], Section 6) generated by the
                  origin server for this occurrence of the problem.
                type: integer
              detail:
                description: >
                  A human-readable explanation specific to this occurrence of
                  the problem.
                type: string
              instance:
                description: >
                  A URI reference that identifies the specific occurrence of the
                  problem. It may yield further information if dereferenced.
                type: string
                format: URI
        '503':
          description: >
            503 SERVICE UNAVAILABLE

            If the API producer encounters an internal overload situation of
            itself or of a system it relies on, it should respond with this
            response code, following the provisions in IETF RFC 7231 for the use
            of the "Retry-After" HTTP header and for the alternative to refuse
            the connection. The "ProblemDetails" structure may be omitted.
          headers:
            Content-Type:
              description: The MIME type of the body of the response.
              type: string
              maximum: 1
              minimum: 1
            WWW-Authenticate:
              description: >
                Challenge if the corresponding HTTP request has not provided
                authorization, or error details if the corresponding HTTP
                request has provided an invalid authorization token.
              type: string
              maximum: 1
              minimum: 0
            Version:
              description: |
                Version of the API used in the response.
              type: string
              maximum: 1
              minimum: 1
          schema:
            description: >
              The definition of the general "ProblemDetails" data structure from
              IETF RFC 7807 [19] is reproduced in this structure. Compared to
              the general framework defined in IETF RFC 7807 [19], the "status"
              and "detail" attributes are mandated to be included by the present
              document, to ensure that the response contains additional textual
              information about an error. IETF RFC 7807 [19] foresees
              extensibility of the "ProblemDetails" type. It is possible that
              particular APIs in the present document, or particular
              implementations, define extensions to define additional attributes
              that provide more information about the error. The description
              column only provides some explanation of the meaning to Facilitate
              understanding of the design. For a full description, see IETF RFC
              7807 [19].
            type: object
            required:
              - status
              - detail
            properties:
              type:
                description: >
                  A URI reference according to IETF RFC 3986 [5] that identifies
                  the problem type. It is encouraged that the URI provides
                  human-readable documentation for the problem (e.g. using HTML)
                  when dereferenced. When this member is not present, its value
                  is assumed to be "about:blank".
                type: string
                format: URI
              title:
                description: >
                  A short, human-readable summary of the problem type. It should
                  not change from occurrence to occurrence of the problem,
                  except for purposes of localization. If type is given and
                  other than "about:blank", this attribute shall also be
                  provided. A short, human-readable summary of the problem
                  type.  It SHOULD NOT change from occurrence to occurrence of
                  the problem, except for purposes of localization (e.g., using
                  proactive content negotiation; see [RFC7231], Section 3.4).
                type: string
              status:
                description: >
                  The HTTP status code for this occurrence of the problem. The
                  HTTP status code ([RFC7231], Section 6) generated by the
                  origin server for this occurrence of the problem.
                type: integer
              detail:
                description: >
                  A human-readable explanation specific to this occurrence of
                  the problem.
                type: string
              instance:
                description: >
                  A URI reference that identifies the specific occurrence of the
                  problem. It may yield further information if dereferenced.
                type: string
                format: URI
  /URI_is_provided_by_the_client_when_creating_the_subscription-NsIdentifierDeletionNotification:
    post:
      summary: Notify about NS lifecycle change
      description: >
        The POST method delivers a notification from the server to the client.
        This method shall support the URI query parameters, request and response
        data structures, and response codes, as specified in the Tables
        6.4.18.3.1-1 and 6.4.18.3.1-2.
      parameters:
        - name: NsIdentifierDeletionNotification
          description: >
            A notification about the deletion of a NS identifier and the related
            NS instance resource.
          in: body
          required: true
          schema:
            type: object
            required:
              - subscriptionId
              - nsInstanceId
            properties:
              notificationType:
                description: >
                  Discriminator for the different notification types. Shall be
                  set to "NsIdentifierDeletionNotification" for this
                  notification type.
                type: string
              subscriptionId:
                description: |
                  An identifier with the intention of being globally unique.
                type: string
              timestamp:
                description: >
                  Date-time stamp. Representation: String formatted according
                  toas defined by the date-time production in IETF RFC 3339.
                format: date-time
              nsInstanceId:
                description: |
                  An identifier with the intention of being globally unique.
                type: string
              _links:
                description: >
                  This type represents the links to resources that a
                  notification can contain.
                type: object
                required:
                  - nsInstance
                properties:
                  nsInstance:
                    description: >
                      This type represents a link to a resource in a
                      notification, using an absolute or relative URI.
                    type: object
                    required:
                      - href
                    properties:
                      href:
                        description: >
                          URI of a resource referenced from a notification.
                          Should be an absolute URI (i.e. a URI that contains
                          {apiRoot}), however, may be a relative URI (i.e. a URI
                          where the {apiRoot} part is omitted) if the {apiRoot}
                          information is not available.
                        type: string
                        format: url
                  subscription:
                    description: >
                      This type represents a link to a resource in a
                      notification, using an absolute or relative URI.
                    type: object
                    required:
                      - href
                    properties:
                      href:
                        description: >
                          URI of a resource referenced from a notification.
                          Should be an absolute URI (i.e. a URI that contains
                          {apiRoot}), however, may be a relative URI (i.e. a URI
                          where the {apiRoot} part is omitted) if the {apiRoot}
                          information is not available.
                        type: string
                        format: url
                  nslcmOpOcc:
                    description: >
                      This type represents a link to a resource in a
                      notification, using an absolute or relative URI.
                    type: object
                    required:
                      - href
                    properties:
                      href:
                        description: >
                          URI of a resource referenced from a notification.
                          Should be an absolute URI (i.e. a URI that contains
                          {apiRoot}), however, may be a relative URI (i.e. a URI
                          where the {apiRoot} part is omitted) if the {apiRoot}
                          information is not available.
                        type: string
                        format: url
        - name: Accept
          description: >
            Content-Types that are acceptable for the response. Reference: IETF
            RFC 7231
          in: header
          required: true
          type: string
        - name: Authorization
          description: |
            The authorization token for the request. Reference: IETF RFC 7235
          in: header
          required: false
          type: string
        - name: Content-Type
          description: |
            The MIME type of the body of the request. Reference: IETF RFC 7231
          in: header
          required: true
          type: string
        - name: Version
          description: |
            Version of the API requested to use when responding to this request.
          in: header
          required: true
          type: string
      responses:
        '204':
          description: >
            204 No Content

            Shall be returned when the notification has been delivered
            successfully.
          headers:
            WWW-Authenticate:
              type: string
              description: >
                Challenge if the corresponding HTTP request has not provided
                authorization, or error details if the corresponding HTTP
                request has provided an invalid authorization token.
              maximum: 1
              minimum: 0
            Version:
              description: |
                Version of the API used in the response.
              type: string
              maximum: 1
              minimum: 1
        '400':
          description: >
            400 BAD REQUEST

            400 code can be returned in the following specified cases, the
            specific cause has to be proper specified in the "ProblemDetails"
            structure to be returned.

            If the request is malformed or syntactically incorrect (e.g. if the
            request URI contains incorrect query parameters or the payload body
            contains a syntactically incorrect data structure), the API producer
            shall respond with this response code. The "ProblemDetails"
            structure shall be provided, and should include in the "detail"
            attribute more information about the source of the problem.

            If the response to a GET request which queries a container resource
            would be so big that the performance of the API producer is
            adversely affected, and the API producer does not support paging for
            the affected resource, it shall respond with this response code. The
            "ProblemDetails" structure shall be provided, and should include in
            the "detail" attribute more information about the source of the
            problem.

            If there is an application error related to the client's input that
            cannot be easily mapped to any other HTTP response code ("catch all
            error"), the API producer shall respond with this response code. The
            "ProblemDetails" structure shall be provided, and shall include in
            the "detail" attribute more information about the source of the
            problem.

            If the request contains a malformed access token, the API producer
            should respond with this response. The details of the error shall be
            returned in the WWW Authenticate HTTP header, as defined in IETF RFC
            6750 and IETF RFC 7235. The ProblemDetails structure may be
            provided.

            The use of this HTTP error response code described above is
            applicable to the use of the OAuth 2.0 for the authorization of API
            requests and notifications, as defined in clauses 4.5.3.3 and
            4.5.3.4.
          headers:
            Content-Type:
              description: The MIME type of the body of the response.
              type: string
              maximum: 1
              minimum: 1
            WWW-Authenticate:
              description: >
                Challenge if the corresponding HTTP request has not provided
                authorization, or error details if the corresponding HTTP
                request has provided an invalid authorization token.
              type: string
              maximum: 1
              minimum: 0
            Version:
              description: |
                Version of the API used in the response.
              type: string
              maximum: 1
              minimum: 1
          schema:
            description: >
              The definition of the general "ProblemDetails" data structure from
              IETF RFC 7807 [19] is reproduced in this structure. Compared to
              the general framework defined in IETF RFC 7807 [19], the "status"
              and "detail" attributes are mandated to be included by the present
              document, to ensure that the response contains additional textual
              information about an error. IETF RFC 7807 [19] foresees
              extensibility of the "ProblemDetails" type. It is possible that
              particular APIs in the present document, or particular
              implementations, define extensions to define additional attributes
              that provide more information about the error. The description
              column only provides some explanation of the meaning to Facilitate
              understanding of the design. For a full description, see IETF RFC
              7807 [19].
            type: object
            required:
              - status
              - detail
            properties:
              type:
                description: >
                  A URI reference according to IETF RFC 3986 [5] that identifies
                  the problem type. It is encouraged that the URI provides
                  human-readable documentation for the problem (e.g. using HTML)
                  when dereferenced. When this member is not present, its value
                  is assumed to be "about:blank".
                type: string
                format: URI
              title:
                description: >
                  A short, human-readable summary of the problem type. It should
                  not change from occurrence to occurrence of the problem,
                  except for purposes of localization. If type is given and
                  other than "about:blank", this attribute shall also be
                  provided. A short, human-readable summary of the problem
                  type.  It SHOULD NOT change from occurrence to occurrence of
                  the problem, except for purposes of localization (e.g., using
                  proactive content negotiation; see [RFC7231], Section 3.4).
                type: string
              status:
                description: >
                  The HTTP status code for this occurrence of the problem. The
                  HTTP status code ([RFC7231], Section 6) generated by the
                  origin server for this occurrence of the problem.
                type: integer
              detail:
                description: >
                  A human-readable explanation specific to this occurrence of
                  the problem.
                type: string
              instance:
                description: >
                  A URI reference that identifies the specific occurrence of the
                  problem. It may yield further information if dereferenced.
                type: string
                format: URI
        '401':
          description: >
            401 UNAUTHORIZED

            If the request contains no access token even though one is required,
            or if the request contains an authorization token that is invalid
            (e.g. expired or revoked), the API producer should respond with this
            response. The details of the error shall be returned in the
            WWW-Authenticate HTTP header, as defined in IETF RFC 6750 and IETF
            RFC 7235. The ProblemDetails structure may be provided.
          headers:
            Content-Type:
              description: The MIME type of the body of the response.
              type: string
              maximum: 1
              minimum: 1
            WWW-Authenticate:
              description: >
                Challenge if the corresponding HTTP request has not provided
                authorization, or error details if the corresponding HTTP
                request has provided an invalid authorization token.
              type: string
              maximum: 1
              minimum: 0
            Version:
              description: |
                Version of the API used in the response.
              type: string
              maximum: 1
              minimum: 1
          schema:
            description: >
              The definition of the general "ProblemDetails" data structure from
              IETF RFC 7807 [19] is reproduced in this structure. Compared to
              the general framework defined in IETF RFC 7807 [19], the "status"
              and "detail" attributes are mandated to be included by the present
              document, to ensure that the response contains additional textual
              information about an error. IETF RFC 7807 [19] foresees
              extensibility of the "ProblemDetails" type. It is possible that
              particular APIs in the present document, or particular
              implementations, define extensions to define additional attributes
              that provide more information about the error. The description
              column only provides some explanation of the meaning to Facilitate
              understanding of the design. For a full description, see IETF RFC
              7807 [19].
            type: object
            required:
              - status
              - detail
            properties:
              type:
                description: >
                  A URI reference according to IETF RFC 3986 [5] that identifies
                  the problem type. It is encouraged that the URI provides
                  human-readable documentation for the problem (e.g. using HTML)
                  when dereferenced. When this member is not present, its value
                  is assumed to be "about:blank".
                type: string
                format: URI
              title:
                description: >
                  A short, human-readable summary of the problem type. It should
                  not change from occurrence to occurrence of the problem,
                  except for purposes of localization. If type is given and
                  other than "about:blank", this attribute shall also be
                  provided. A short, human-readable summary of the problem
                  type.  It SHOULD NOT change from occurrence to occurrence of
                  the problem, except for purposes of localization (e.g., using
                  proactive content negotiation; see [RFC7231], Section 3.4).
                type: string
              status:
                description: >
                  The HTTP status code for this occurrence of the problem. The
                  HTTP status code ([RFC7231], Section 6) generated by the
                  origin server for this occurrence of the problem.
                type: integer
              detail:
                description: >
                  A human-readable explanation specific to this occurrence of
                  the problem.
                type: string
              instance:
                description: >
                  A URI reference that identifies the specific occurrence of the
                  problem. It may yield further information if dereferenced.
                type: string
                format: URI
        '403':
          description: >
            403 FORBIDDEN

            If the API consumer is not allowed to perform a particular request
            to a particular resource, the API producer shall respond with this
            response code. The "ProblemDetails" structure shall be provided. It
            should include in the "detail" attribute information about the
            source of the problem, and may indicate how to solve it.
          headers:
            Content-Type:
              description: The MIME type of the body of the response.
              type: string
              maximum: 1
              minimum: 1
            WWW-Authenticate:
              description: >
                Challenge if the corresponding HTTP request has not provided
                authorization, or error details if the corresponding HTTP
                request has provided an invalid authorization token.
              type: string
              maximum: 1
              minimum: 0
            Version:
              description: |
                Version of the API used in the response.
              type: string
              maximum: 1
              minimum: 1
          schema:
            description: >
              The definition of the general "ProblemDetails" data structure from
              IETF RFC 7807 [19] is reproduced in this structure. Compared to
              the general framework defined in IETF RFC 7807 [19], the "status"
              and "detail" attributes are mandated to be included by the present
              document, to ensure that the response contains additional textual
              information about an error. IETF RFC 7807 [19] foresees
              extensibility of the "ProblemDetails" type. It is possible that
              particular APIs in the present document, or particular
              implementations, define extensions to define additional attributes
              that provide more information about the error. The description
              column only provides some explanation of the meaning to Facilitate
              understanding of the design. For a full description, see IETF RFC
              7807 [19].
            type: object
            required:
              - status
              - detail
            properties:
              type:
                description: >
                  A URI reference according to IETF RFC 3986 [5] that identifies
                  the problem type. It is encouraged that the URI provides
                  human-readable documentation for the problem (e.g. using HTML)
                  when dereferenced. When this member is not present, its value
                  is assumed to be "about:blank".
                type: string
                format: URI
              title:
                description: >
                  A short, human-readable summary of the problem type. It should
                  not change from occurrence to occurrence of the problem,
                  except for purposes of localization. If type is given and
                  other than "about:blank", this attribute shall also be
                  provided. A short, human-readable summary of the problem
                  type.  It SHOULD NOT change from occurrence to occurrence of
                  the problem, except for purposes of localization (e.g., using
                  proactive content negotiation; see [RFC7231], Section 3.4).
                type: string
              status:
                description: >
                  The HTTP status code for this occurrence of the problem. The
                  HTTP status code ([RFC7231], Section 6) generated by the
                  origin server for this occurrence of the problem.
                type: integer
              detail:
                description: >
                  A human-readable explanation specific to this occurrence of
                  the problem.
                type: string
              instance:
                description: >
                  A URI reference that identifies the specific occurrence of the
                  problem. It may yield further information if dereferenced.
                type: string
                format: URI
        '404':
          description: >
            404 NOT FOUND

            If the API producer did not find a current representation for the
            resource addressed by the URI passed in the request or is not
            willing to disclose that one exists, it shall respond with this
            response code. The "ProblemDetails" structure may be provided,
            including in the "detail" attribute information about the source of
            the problem, e.g. a wrong resource URI variable.

            This response code is not appropriate in case the resource addressed
            by the URI is a container resource which is designed to contain
            child resources, but does not contain any child resource at the time
            the request is received. For a GET request to an existing empty
            container resource, a typical response contains a 200 OK response
            code and a payload body with an empty array.
          headers:
            Content-Type:
              description: The MIME type of the body of the response.
              type: string
              maximum: 1
              minimum: 1
            WWW-Authenticate:
              description: >
                Challenge if the corresponding HTTP request has not provided
                authorization, or error details if the corresponding HTTP
                request has provided an invalid authorization token.
              type: string
              maximum: 1
              minimum: 0
            Version:
              description: |
                Version of the API used in the response.
              type: string
              maximum: 1
              minimum: 1
          schema:
            description: >
              The definition of the general "ProblemDetails" data structure from
              IETF RFC 7807 [19] is reproduced in this structure. Compared to
              the general framework defined in IETF RFC 7807 [19], the "status"
              and "detail" attributes are mandated to be included by the present
              document, to ensure that the response contains additional textual
              information about an error. IETF RFC 7807 [19] foresees
              extensibility of the "ProblemDetails" type. It is possible that
              particular APIs in the present document, or particular
              implementations, define extensions to define additional attributes
              that provide more information about the error. The description
              column only provides some explanation of the meaning to Facilitate
              understanding of the design. For a full description, see IETF RFC
              7807 [19].
            type: object
            required:
              - status
              - detail
            properties:
              type:
                description: >
                  A URI reference according to IETF RFC 3986 [5] that identifies
                  the problem type. It is encouraged that the URI provides
                  human-readable documentation for the problem (e.g. using HTML)
                  when dereferenced. When this member is not present, its value
                  is assumed to be "about:blank".
                type: string
                format: URI
              title:
                description: >
                  A short, human-readable summary of the problem type. It should
                  not change from occurrence to occurrence of the problem,
                  except for purposes of localization. If type is given and
                  other than "about:blank", this attribute shall also be
                  provided. A short, human-readable summary of the problem
                  type.  It SHOULD NOT change from occurrence to occurrence of
                  the problem, except for purposes of localization (e.g., using
                  proactive content negotiation; see [RFC7231], Section 3.4).
                type: string
              status:
                description: >
                  The HTTP status code for this occurrence of the problem. The
                  HTTP status code ([RFC7231], Section 6) generated by the
                  origin server for this occurrence of the problem.
                type: integer
              detail:
                description: >
                  A human-readable explanation specific to this occurrence of
                  the problem.
                type: string
              instance:
                description: >
                  A URI reference that identifies the specific occurrence of the
                  problem. It may yield further information if dereferenced.
                type: string
                format: URI
        '405':
          description: >
            405 METHOD NOT ALLOWED

            If a particular HTTP method is not supported for a particular
            resource, the API producer shall respond with this response code.
            The "ProblemDetails" structure may be omitted.
          headers:
            Content-Type:
              description: The MIME type of the body of the response.
              type: string
              maximum: 1
              minimum: 1
            WWW-Authenticate:
              description: >
                Challenge if the corresponding HTTP request has not provided
                authorization, or error details if the corresponding HTTP
                request has provided an invalid authorization token.
              type: string
              maximum: 1
              minimum: 0
            Version:
              description: |
                Version of the API used in the response.
              type: string
              maximum: 1
              minimum: 1
          schema:
            description: >
              The definition of the general "ProblemDetails" data structure from
              IETF RFC 7807 [19] is reproduced in this structure. Compared to
              the general framework defined in IETF RFC 7807 [19], the "status"
              and "detail" attributes are mandated to be included by the present
              document, to ensure that the response contains additional textual
              information about an error. IETF RFC 7807 [19] foresees
              extensibility of the "ProblemDetails" type. It is possible that
              particular APIs in the present document, or particular
              implementations, define extensions to define additional attributes
              that provide more information about the error. The description
              column only provides some explanation of the meaning to Facilitate
              understanding of the design. For a full description, see IETF RFC
              7807 [19].
            type: object
            required:
              - status
              - detail
            properties:
              type:
                description: >
                  A URI reference according to IETF RFC 3986 [5] that identifies
                  the problem type. It is encouraged that the URI provides
                  human-readable documentation for the problem (e.g. using HTML)
                  when dereferenced. When this member is not present, its value
                  is assumed to be "about:blank".
                type: string
                format: URI
              title:
                description: >
                  A short, human-readable summary of the problem type. It should
                  not change from occurrence to occurrence of the problem,
                  except for purposes of localization. If type is given and
                  other than "about:blank", this attribute shall also be
                  provided. A short, human-readable summary of the problem
                  type.  It SHOULD NOT change from occurrence to occurrence of
                  the problem, except for purposes of localization (e.g., using
                  proactive content negotiation; see [RFC7231], Section 3.4).
                type: string
              status:
                description: >
                  The HTTP status code for this occurrence of the problem. The
                  HTTP status code ([RFC7231], Section 6) generated by the
                  origin server for this occurrence of the problem.
                type: integer
              detail:
                description: >
                  A human-readable explanation specific to this occurrence of
                  the problem.
                type: string
              instance:
                description: >
                  A URI reference that identifies the specific occurrence of the
                  problem. It may yield further information if dereferenced.
                type: string
                format: URI
        '406':
          description: >
            406 NOT ACCEPTABLE

            If the "Accept" header does not contain at least one name of a
            content type that is acceptable to the API producer, the API
            producer shall respond with this response code. The "ProblemDetails"
            structure may be omitted.
          headers:
            Content-Type:
              description: The MIME type of the body of the response.
              type: string
              maximum: 1
              minimum: 1
            WWW-Authenticate:
              description: >
                Challenge if the corresponding HTTP request has not provided
                authorization, or error details if the corresponding HTTP
                request has provided an invalid authorization token.
              type: string
              maximum: 1
              minimum: 0
            Version:
              description: |
                Version of the API used in the response.
              type: string
              maximum: 1
              minimum: 1
          schema:
            description: >
              The definition of the general "ProblemDetails" data structure from
              IETF RFC 7807 [19] is reproduced in this structure. Compared to
              the general framework defined in IETF RFC 7807 [19], the "status"
              and "detail" attributes are mandated to be included by the present
              document, to ensure that the response contains additional textual
              information about an error. IETF RFC 7807 [19] foresees
              extensibility of the "ProblemDetails" type. It is possible that
              particular APIs in the present document, or particular
              implementations, define extensions to define additional attributes
              that provide more information about the error. The description
              column only provides some explanation of the meaning to Facilitate
              understanding of the design. For a full description, see IETF RFC
              7807 [19].
            type: object
            required:
              - status
              - detail
            properties:
              type:
                description: >
                  A URI reference according to IETF RFC 3986 [5] that identifies
                  the problem type. It is encouraged that the URI provides
                  human-readable documentation for the problem (e.g. using HTML)
                  when dereferenced. When this member is not present, its value
                  is assumed to be "about:blank".
                type: string
                format: URI
              title:
                description: >
                  A short, human-readable summary of the problem type. It should
                  not change from occurrence to occurrence of the problem,
                  except for purposes of localization. If type is given and
                  other than "about:blank", this attribute shall also be
                  provided. A short, human-readable summary of the problem
                  type.  It SHOULD NOT change from occurrence to occurrence of
                  the problem, except for purposes of localization (e.g., using
                  proactive content negotiation; see [RFC7231], Section 3.4).
                type: string
              status:
                description: >
                  The HTTP status code for this occurrence of the problem. The
                  HTTP status code ([RFC7231], Section 6) generated by the
                  origin server for this occurrence of the problem.
                type: integer
              detail:
                description: >
                  A human-readable explanation specific to this occurrence of
                  the problem.
                type: string
              instance:
                description: >
                  A URI reference that identifies the specific occurrence of the
                  problem. It may yield further information if dereferenced.
                type: string
                format: URI
        '500':
          description: >
            500 INTERNAL SERVER ERROR

            If there is an application error not related to the client's input
            that cannot be easily mapped to any other HTTP response code ("catch
            all error"), the API producer shall respond with this response code.
            The "ProblemDetails" structure shall be provided, and shall include
            in the "detail" attribute more information about the source of the
            problem.
          headers:
            Content-Type:
              description: The MIME type of the body of the response.
              type: string
              maximum: 1
              minimum: 1
            WWW-Authenticate:
              description: >
                Challenge if the corresponding HTTP request has not provided
                authorization, or error details if the corresponding HTTP
                request has provided an invalid authorization token.
              type: string
              maximum: 1
              minimum: 0
            Version:
              description: |
                Version of the API used in the response.
              type: string
              maximum: 1
              minimum: 1
          schema:
            description: >
              The definition of the general "ProblemDetails" data structure from
              IETF RFC 7807 [19] is reproduced in this structure. Compared to
              the general framework defined in IETF RFC 7807 [19], the "status"
              and "detail" attributes are mandated to be included by the present
              document, to ensure that the response contains additional textual
              information about an error. IETF RFC 7807 [19] foresees
              extensibility of the "ProblemDetails" type. It is possible that
              particular APIs in the present document, or particular
              implementations, define extensions to define additional attributes
              that provide more information about the error. The description
              column only provides some explanation of the meaning to Facilitate
              understanding of the design. For a full description, see IETF RFC
              7807 [19].
            type: object
            required:
              - status
              - detail
            properties:
              type:
                description: >
                  A URI reference according to IETF RFC 3986 [5] that identifies
                  the problem type. It is encouraged that the URI provides
                  human-readable documentation for the problem (e.g. using HTML)
                  when dereferenced. When this member is not present, its value
                  is assumed to be "about:blank".
                type: string
                format: URI
              title:
                description: >
                  A short, human-readable summary of the problem type. It should
                  not change from occurrence to occurrence of the problem,
                  except for purposes of localization. If type is given and
                  other than "about:blank", this attribute shall also be
                  provided. A short, human-readable summary of the problem
                  type.  It SHOULD NOT change from occurrence to occurrence of
                  the problem, except for purposes of localization (e.g., using
                  proactive content negotiation; see [RFC7231], Section 3.4).
                type: string
              status:
                description: >
                  The HTTP status code for this occurrence of the problem. The
                  HTTP status code ([RFC7231], Section 6) generated by the
                  origin server for this occurrence of the problem.
                type: integer
              detail:
                description: >
                  A human-readable explanation specific to this occurrence of
                  the problem.
                type: string
              instance:
                description: >
                  A URI reference that identifies the specific occurrence of the
                  problem. It may yield further information if dereferenced.
                type: string
                format: URI
        '503':
          description: >
            503 SERVICE UNAVAILABLE

            If the API producer encounters an internal overload situation of
            itself or of a system it relies on, it should respond with this
            response code, following the provisions in IETF RFC 7231 for the use
            of the "Retry-After" HTTP header and for the alternative to refuse
            the connection. The "ProblemDetails" structure may be omitted.
          headers:
            Content-Type:
              description: The MIME type of the body of the response.
              type: string
              maximum: 1
              minimum: 1
            WWW-Authenticate:
              description: >
                Challenge if the corresponding HTTP request has not provided
                authorization, or error details if the corresponding HTTP
                request has provided an invalid authorization token.
              type: string
              maximum: 1
              minimum: 0
            Version:
              description: |
                Version of the API used in the response.
              type: string
              maximum: 1
              minimum: 1
          schema:
            description: >
              The definition of the general "ProblemDetails" data structure from
              IETF RFC 7807 [19] is reproduced in this structure. Compared to
              the general framework defined in IETF RFC 7807 [19], the "status"
              and "detail" attributes are mandated to be included by the present
              document, to ensure that the response contains additional textual
              information about an error. IETF RFC 7807 [19] foresees
              extensibility of the "ProblemDetails" type. It is possible that
              particular APIs in the present document, or particular
              implementations, define extensions to define additional attributes
              that provide more information about the error. The description
              column only provides some explanation of the meaning to Facilitate
              understanding of the design. For a full description, see IETF RFC
              7807 [19].
            type: object
            required:
              - status
              - detail
            properties:
              type:
                description: >
                  A URI reference according to IETF RFC 3986 [5] that identifies
                  the problem type. It is encouraged that the URI provides
                  human-readable documentation for the problem (e.g. using HTML)
                  when dereferenced. When this member is not present, its value
                  is assumed to be "about:blank".
                type: string
                format: URI
              title:
                description: >
                  A short, human-readable summary of the problem type. It should
                  not change from occurrence to occurrence of the problem,
                  except for purposes of localization. If type is given and
                  other than "about:blank", this attribute shall also be
                  provided. A short, human-readable summary of the problem
                  type.  It SHOULD NOT change from occurrence to occurrence of
                  the problem, except for purposes of localization (e.g., using
                  proactive content negotiation; see [RFC7231], Section 3.4).
                type: string
              status:
                description: >
                  The HTTP status code for this occurrence of the problem. The
                  HTTP status code ([RFC7231], Section 6) generated by the
                  origin server for this occurrence of the problem.
                type: integer
              detail:
                description: >
                  A human-readable explanation specific to this occurrence of
                  the problem.
                type: string
              instance:
                description: >
                  A URI reference that identifies the specific occurrence of the
                  problem. It may yield further information if dereferenced.
                type: string
                format: URI
    get:
      summary: Test the notification endpoint.
      description: >
        Query NS Instances.

        The GET method queries information about multiple NS instances. This
        method shall support the URI query parameters, request and response data
        structures, and response codes, as specified in the Tables 6.4.2.3.2-1
        and 6.4.2.3.2-2.
      parameters:
        - name: Accept
          description: >
            Content-Types that are acceptable for the response. Reference: IETF
            RFC 7231
          in: header
          required: true
          type: string
        - name: Authorization
          description: |
            The authorization token for the request. Reference: IETF RFC 7235
          in: header
          required: false
          type: string
        - name: Version
          description: |
            Version of the API requested to use when responding to this request.
          in: header
          required: true
          type: string
      responses:
        '204':
          description: >
            204 No Content

            Shall be returned when the notification endpoint has been tested
            successfully. The response body shall be empty.
          headers:
            WWW-Authenticate:
              type: string
              description: >
                Challenge if the corresponding HTTP request has not provided
                authorization, or error details if the corresponding HTTP
                request has provided an invalid authorization token.
              maximum: 1
              minimum: 0
            Version:
              description: |
                Version of the API used in the response.
              type: string
              maximum: 1
              minimum: 1
        '400':
          description: >
            400 BAD REQUEST

            400 code can be returned in the following specified cases, the
            specific cause has to be proper specified in the "ProblemDetails"
            structure to be returned.

            If the request is malformed or syntactically incorrect (e.g. if the
            request URI contains incorrect query parameters or the payload body
            contains a syntactically incorrect data structure), the API producer
            shall respond with this response code. The "ProblemDetails"
            structure shall be provided, and should include in the "detail"
            attribute more information about the source of the problem.

            If the response to a GET request which queries a container resource
            would be so big that the performance of the API producer is
            adversely affected, and the API producer does not support paging for
            the affected resource, it shall respond with this response code. The
            "ProblemDetails" structure shall be provided, and should include in
            the "detail" attribute more information about the source of the
            problem.

            If there is an application error related to the client's input that
            cannot be easily mapped to any other HTTP response code ("catch all
            error"), the API producer shall respond with this response code. The
            "ProblemDetails" structure shall be provided, and shall include in
            the "detail" attribute more information about the source of the
            problem.

            If the request contains a malformed access token, the API producer
            should respond with this response. The details of the error shall be
            returned in the WWW Authenticate HTTP header, as defined in IETF RFC
            6750 and IETF RFC 7235. The ProblemDetails structure may be
            provided.

            The use of this HTTP error response code described above is
            applicable to the use of the OAuth 2.0 for the authorization of API
            requests and notifications, as defined in clauses 4.5.3.3 and
            4.5.3.4.
          headers:
            Content-Type:
              description: The MIME type of the body of the response.
              type: string
              maximum: 1
              minimum: 1
            WWW-Authenticate:
              description: >
                Challenge if the corresponding HTTP request has not provided
                authorization, or error details if the corresponding HTTP
                request has provided an invalid authorization token.
              type: string
              maximum: 1
              minimum: 0
            Version:
              description: |
                Version of the API used in the response.
              type: string
              maximum: 1
              minimum: 1
          schema:
            description: >
              The definition of the general "ProblemDetails" data structure from
              IETF RFC 7807 [19] is reproduced in this structure. Compared to
              the general framework defined in IETF RFC 7807 [19], the "status"
              and "detail" attributes are mandated to be included by the present
              document, to ensure that the response contains additional textual
              information about an error. IETF RFC 7807 [19] foresees
              extensibility of the "ProblemDetails" type. It is possible that
              particular APIs in the present document, or particular
              implementations, define extensions to define additional attributes
              that provide more information about the error. The description
              column only provides some explanation of the meaning to Facilitate
              understanding of the design. For a full description, see IETF RFC
              7807 [19].
            type: object
            required:
              - status
              - detail
            properties:
              type:
                description: >
                  A URI reference according to IETF RFC 3986 [5] that identifies
                  the problem type. It is encouraged that the URI provides
                  human-readable documentation for the problem (e.g. using HTML)
                  when dereferenced. When this member is not present, its value
                  is assumed to be "about:blank".
                type: string
                format: URI
              title:
                description: >
                  A short, human-readable summary of the problem type. It should
                  not change from occurrence to occurrence of the problem,
                  except for purposes of localization. If type is given and
                  other than "about:blank", this attribute shall also be
                  provided. A short, human-readable summary of the problem
                  type.  It SHOULD NOT change from occurrence to occurrence of
                  the problem, except for purposes of localization (e.g., using
                  proactive content negotiation; see [RFC7231], Section 3.4).
                type: string
              status:
                description: >
                  The HTTP status code for this occurrence of the problem. The
                  HTTP status code ([RFC7231], Section 6) generated by the
                  origin server for this occurrence of the problem.
                type: integer
              detail:
                description: >
                  A human-readable explanation specific to this occurrence of
                  the problem.
                type: string
              instance:
                description: >
                  A URI reference that identifies the specific occurrence of the
                  problem. It may yield further information if dereferenced.
                type: string
                format: URI
        '401':
          description: >
            401 UNAUTHORIZED

            If the request contains no access token even though one is required,
            or if the request contains an authorization token that is invalid
            (e.g. expired or revoked), the API producer should respond with this
            response. The details of the error shall be returned in the
            WWW-Authenticate HTTP header, as defined in IETF RFC 6750 and IETF
            RFC 7235. The ProblemDetails structure may be provided.
          headers:
            Content-Type:
              description: The MIME type of the body of the response.
              type: string
              maximum: 1
              minimum: 1
            WWW-Authenticate:
              description: >
                Challenge if the corresponding HTTP request has not provided
                authorization, or error details if the corresponding HTTP
                request has provided an invalid authorization token.
              type: string
              maximum: 1
              minimum: 0
            Version:
              description: |
                Version of the API used in the response.
              type: string
              maximum: 1
              minimum: 1
          schema:
            description: >
              The definition of the general "ProblemDetails" data structure from
              IETF RFC 7807 [19] is reproduced in this structure. Compared to
              the general framework defined in IETF RFC 7807 [19], the "status"
              and "detail" attributes are mandated to be included by the present
              document, to ensure that the response contains additional textual
              information about an error. IETF RFC 7807 [19] foresees
              extensibility of the "ProblemDetails" type. It is possible that
              particular APIs in the present document, or particular
              implementations, define extensions to define additional attributes
              that provide more information about the error. The description
              column only provides some explanation of the meaning to Facilitate
              understanding of the design. For a full description, see IETF RFC
              7807 [19].
            type: object
            required:
              - status
              - detail
            properties:
              type:
                description: >
                  A URI reference according to IETF RFC 3986 [5] that identifies
                  the problem type. It is encouraged that the URI provides
                  human-readable documentation for the problem (e.g. using HTML)
                  when dereferenced. When this member is not present, its value
                  is assumed to be "about:blank".
                type: string
                format: URI
              title:
                description: >
                  A short, human-readable summary of the problem type. It should
                  not change from occurrence to occurrence of the problem,
                  except for purposes of localization. If type is given and
                  other than "about:blank", this attribute shall also be
                  provided. A short, human-readable summary of the problem
                  type.  It SHOULD NOT change from occurrence to occurrence of
                  the problem, except for purposes of localization (e.g., using
                  proactive content negotiation; see [RFC7231], Section 3.4).
                type: string
              status:
                description: >
                  The HTTP status code for this occurrence of the problem. The
                  HTTP status code ([RFC7231], Section 6) generated by the
                  origin server for this occurrence of the problem.
                type: integer
              detail:
                description: >
                  A human-readable explanation specific to this occurrence of
                  the problem.
                type: string
              instance:
                description: >
                  A URI reference that identifies the specific occurrence of the
                  problem. It may yield further information if dereferenced.
                type: string
                format: URI
        '403':
          description: >
            403 FORBIDDEN

            If the API consumer is not allowed to perform a particular request
            to a particular resource, the API producer shall respond with this
            response code. The "ProblemDetails" structure shall be provided. It
            should include in the "detail" attribute information about the
            source of the problem, and may indicate how to solve it.
          headers:
            Content-Type:
              description: The MIME type of the body of the response.
              type: string
              maximum: 1
              minimum: 1
            WWW-Authenticate:
              description: >
                Challenge if the corresponding HTTP request has not provided
                authorization, or error details if the corresponding HTTP
                request has provided an invalid authorization token.
              type: string
              maximum: 1
              minimum: 0
            Version:
              description: |
                Version of the API used in the response.
              type: string
              maximum: 1
              minimum: 1
          schema:
            description: >
              The definition of the general "ProblemDetails" data structure from
              IETF RFC 7807 [19] is reproduced in this structure. Compared to
              the general framework defined in IETF RFC 7807 [19], the "status"
              and "detail" attributes are mandated to be included by the present
              document, to ensure that the response contains additional textual
              information about an error. IETF RFC 7807 [19] foresees
              extensibility of the "ProblemDetails" type. It is possible that
              particular APIs in the present document, or particular
              implementations, define extensions to define additional attributes
              that provide more information about the error. The description
              column only provides some explanation of the meaning to Facilitate
              understanding of the design. For a full description, see IETF RFC
              7807 [19].
            type: object
            required:
              - status
              - detail
            properties:
              type:
                description: >
                  A URI reference according to IETF RFC 3986 [5] that identifies
                  the problem type. It is encouraged that the URI provides
                  human-readable documentation for the problem (e.g. using HTML)
                  when dereferenced. When this member is not present, its value
                  is assumed to be "about:blank".
                type: string
                format: URI
              title:
                description: >
                  A short, human-readable summary of the problem type. It should
                  not change from occurrence to occurrence of the problem,
                  except for purposes of localization. If type is given and
                  other than "about:blank", this attribute shall also be
                  provided. A short, human-readable summary of the problem
                  type.  It SHOULD NOT change from occurrence to occurrence of
                  the problem, except for purposes of localization (e.g., using
                  proactive content negotiation; see [RFC7231], Section 3.4).
                type: string
              status:
                description: >
                  The HTTP status code for this occurrence of the problem. The
                  HTTP status code ([RFC7231], Section 6) generated by the
                  origin server for this occurrence of the problem.
                type: integer
              detail:
                description: >
                  A human-readable explanation specific to this occurrence of
                  the problem.
                type: string
              instance:
                description: >
                  A URI reference that identifies the specific occurrence of the
                  problem. It may yield further information if dereferenced.
                type: string
                format: URI
        '404':
          description: >
            404 NOT FOUND

            If the API producer did not find a current representation for the
            resource addressed by the URI passed in the request or is not
            willing to disclose that one exists, it shall respond with this
            response code. The "ProblemDetails" structure may be provided,
            including in the "detail" attribute information about the source of
            the problem, e.g. a wrong resource URI variable.

            This response code is not appropriate in case the resource addressed
            by the URI is a container resource which is designed to contain
            child resources, but does not contain any child resource at the time
            the request is received. For a GET request to an existing empty
            container resource, a typical response contains a 200 OK response
            code and a payload body with an empty array.
          headers:
            Content-Type:
              description: The MIME type of the body of the response.
              type: string
              maximum: 1
              minimum: 1
            WWW-Authenticate:
              description: >
                Challenge if the corresponding HTTP request has not provided
                authorization, or error details if the corresponding HTTP
                request has provided an invalid authorization token.
              type: string
              maximum: 1
              minimum: 0
            Version:
              description: |
                Version of the API used in the response.
              type: string
              maximum: 1
              minimum: 1
          schema:
            description: >
              The definition of the general "ProblemDetails" data structure from
              IETF RFC 7807 [19] is reproduced in this structure. Compared to
              the general framework defined in IETF RFC 7807 [19], the "status"
              and "detail" attributes are mandated to be included by the present
              document, to ensure that the response contains additional textual
              information about an error. IETF RFC 7807 [19] foresees
              extensibility of the "ProblemDetails" type. It is possible that
              particular APIs in the present document, or particular
              implementations, define extensions to define additional attributes
              that provide more information about the error. The description
              column only provides some explanation of the meaning to Facilitate
              understanding of the design. For a full description, see IETF RFC
              7807 [19].
            type: object
            required:
              - status
              - detail
            properties:
              type:
                description: >
                  A URI reference according to IETF RFC 3986 [5] that identifies
                  the problem type. It is encouraged that the URI provides
                  human-readable documentation for the problem (e.g. using HTML)
                  when dereferenced. When this member is not present, its value
                  is assumed to be "about:blank".
                type: string
                format: URI
              title:
                description: >
                  A short, human-readable summary of the problem type. It should
                  not change from occurrence to occurrence of the problem,
                  except for purposes of localization. If type is given and
                  other than "about:blank", this attribute shall also be
                  provided. A short, human-readable summary of the problem
                  type.  It SHOULD NOT change from occurrence to occurrence of
                  the problem, except for purposes of localization (e.g., using
                  proactive content negotiation; see [RFC7231], Section 3.4).
                type: string
              status:
                description: >
                  The HTTP status code for this occurrence of the problem. The
                  HTTP status code ([RFC7231], Section 6) generated by the
                  origin server for this occurrence of the problem.
                type: integer
              detail:
                description: >
                  A human-readable explanation specific to this occurrence of
                  the problem.
                type: string
              instance:
                description: >
                  A URI reference that identifies the specific occurrence of the
                  problem. It may yield further information if dereferenced.
                type: string
                format: URI
        '405':
          description: >
            405 METHOD NOT ALLOWED

            If a particular HTTP method is not supported for a particular
            resource, the API producer shall respond with this response code.
            The "ProblemDetails" structure may be omitted.
          headers:
            Content-Type:
              description: The MIME type of the body of the response.
              type: string
              maximum: 1
              minimum: 1
            WWW-Authenticate:
              description: >
                Challenge if the corresponding HTTP request has not provided
                authorization, or error details if the corresponding HTTP
                request has provided an invalid authorization token.
              type: string
              maximum: 1
              minimum: 0
            Version:
              description: |
                Version of the API used in the response.
              type: string
              maximum: 1
              minimum: 1
          schema:
            description: >
              The definition of the general "ProblemDetails" data structure from
              IETF RFC 7807 [19] is reproduced in this structure. Compared to
              the general framework defined in IETF RFC 7807 [19], the "status"
              and "detail" attributes are mandated to be included by the present
              document, to ensure that the response contains additional textual
              information about an error. IETF RFC 7807 [19] foresees
              extensibility of the "ProblemDetails" type. It is possible that
              particular APIs in the present document, or particular
              implementations, define extensions to define additional attributes
              that provide more information about the error. The description
              column only provides some explanation of the meaning to Facilitate
              understanding of the design. For a full description, see IETF RFC
              7807 [19].
            type: object
            required:
              - status
              - detail
            properties:
              type:
                description: >
                  A URI reference according to IETF RFC 3986 [5] that identifies
                  the problem type. It is encouraged that the URI provides
                  human-readable documentation for the problem (e.g. using HTML)
                  when dereferenced. When this member is not present, its value
                  is assumed to be "about:blank".
                type: string
                format: URI
              title:
                description: >
                  A short, human-readable summary of the problem type. It should
                  not change from occurrence to occurrence of the problem,
                  except for purposes of localization. If type is given and
                  other than "about:blank", this attribute shall also be
                  provided. A short, human-readable summary of the problem
                  type.  It SHOULD NOT change from occurrence to occurrence of
                  the problem, except for purposes of localization (e.g., using
                  proactive content negotiation; see [RFC7231], Section 3.4).
                type: string
              status:
                description: >
                  The HTTP status code for this occurrence of the problem. The
                  HTTP status code ([RFC7231], Section 6) generated by the
                  origin server for this occurrence of the problem.
                type: integer
              detail:
                description: >
                  A human-readable explanation specific to this occurrence of
                  the problem.
                type: string
              instance:
                description: >
                  A URI reference that identifies the specific occurrence of the
                  problem. It may yield further information if dereferenced.
                type: string
                format: URI
        '406':
          description: >
            406 NOT ACCEPTABLE

            If the "Accept" header does not contain at least one name of a
            content type that is acceptable to the API producer, the API
            producer shall respond with this response code. The "ProblemDetails"
            structure may be omitted.
          headers:
            Content-Type:
              description: The MIME type of the body of the response.
              type: string
              maximum: 1
              minimum: 1
            WWW-Authenticate:
              description: >
                Challenge if the corresponding HTTP request has not provided
                authorization, or error details if the corresponding HTTP
                request has provided an invalid authorization token.
              type: string
              maximum: 1
              minimum: 0
            Version:
              description: |
                Version of the API used in the response.
              type: string
              maximum: 1
              minimum: 1
          schema:
            description: >
              The definition of the general "ProblemDetails" data structure from
              IETF RFC 7807 [19] is reproduced in this structure. Compared to
              the general framework defined in IETF RFC 7807 [19], the "status"
              and "detail" attributes are mandated to be included by the present
              document, to ensure that the response contains additional textual
              information about an error. IETF RFC 7807 [19] foresees
              extensibility of the "ProblemDetails" type. It is possible that
              particular APIs in the present document, or particular
              implementations, define extensions to define additional attributes
              that provide more information about the error. The description
              column only provides some explanation of the meaning to Facilitate
              understanding of the design. For a full description, see IETF RFC
              7807 [19].
            type: object
            required:
              - status
              - detail
            properties:
              type:
                description: >
                  A URI reference according to IETF RFC 3986 [5] that identifies
                  the problem type. It is encouraged that the URI provides
                  human-readable documentation for the problem (e.g. using HTML)
                  when dereferenced. When this member is not present, its value
                  is assumed to be "about:blank".
                type: string
                format: URI
              title:
                description: >
                  A short, human-readable summary of the problem type. It should
                  not change from occurrence to occurrence of the problem,
                  except for purposes of localization. If type is given and
                  other than "about:blank", this attribute shall also be
                  provided. A short, human-readable summary of the problem
                  type.  It SHOULD NOT change from occurrence to occurrence of
                  the problem, except for purposes of localization (e.g., using
                  proactive content negotiation; see [RFC7231], Section 3.4).
                type: string
              status:
                description: >
                  The HTTP status code for this occurrence of the problem. The
                  HTTP status code ([RFC7231], Section 6) generated by the
                  origin server for this occurrence of the problem.
                type: integer
              detail:
                description: >
                  A human-readable explanation specific to this occurrence of
                  the problem.
                type: string
              instance:
                description: >
                  A URI reference that identifies the specific occurrence of the
                  problem. It may yield further information if dereferenced.
                type: string
                format: URI
        '500':
          description: >
            500 INTERNAL SERVER ERROR

            If there is an application error not related to the client's input
            that cannot be easily mapped to any other HTTP response code ("catch
            all error"), the API producer shall respond with this response code.
            The "ProblemDetails" structure shall be provided, and shall include
            in the "detail" attribute more information about the source of the
            problem.
          headers:
            Content-Type:
              description: The MIME type of the body of the response.
              type: string
              maximum: 1
              minimum: 1
            WWW-Authenticate:
              description: >
                Challenge if the corresponding HTTP request has not provided
                authorization, or error details if the corresponding HTTP
                request has provided an invalid authorization token.
              type: string
              maximum: 1
              minimum: 0
            Version:
              description: |
                Version of the API used in the response.
              type: string
              maximum: 1
              minimum: 1
          schema:
            description: >
              The definition of the general "ProblemDetails" data structure from
              IETF RFC 7807 [19] is reproduced in this structure. Compared to
              the general framework defined in IETF RFC 7807 [19], the "status"
              and "detail" attributes are mandated to be included by the present
              document, to ensure that the response contains additional textual
              information about an error. IETF RFC 7807 [19] foresees
              extensibility of the "ProblemDetails" type. It is possible that
              particular APIs in the present document, or particular
              implementations, define extensions to define additional attributes
              that provide more information about the error. The description
              column only provides some explanation of the meaning to Facilitate
              understanding of the design. For a full description, see IETF RFC
              7807 [19].
            type: object
            required:
              - status
              - detail
            properties:
              type:
                description: >
                  A URI reference according to IETF RFC 3986 [5] that identifies
                  the problem type. It is encouraged that the URI provides
                  human-readable documentation for the problem (e.g. using HTML)
                  when dereferenced. When this member is not present, its value
                  is assumed to be "about:blank".
                type: string
                format: URI
              title:
                description: >
                  A short, human-readable summary of the problem type. It should
                  not change from occurrence to occurrence of the problem,
                  except for purposes of localization. If type is given and
                  other than "about:blank", this attribute shall also be
                  provided. A short, human-readable summary of the problem
                  type.  It SHOULD NOT change from occurrence to occurrence of
                  the problem, except for purposes of localization (e.g., using
                  proactive content negotiation; see [RFC7231], Section 3.4).
                type: string
              status:
                description: >
                  The HTTP status code for this occurrence of the problem. The
                  HTTP status code ([RFC7231], Section 6) generated by the
                  origin server for this occurrence of the problem.
                type: integer
              detail:
                description: >
                  A human-readable explanation specific to this occurrence of
                  the problem.
                type: string
              instance:
                description: >
                  A URI reference that identifies the specific occurrence of the
                  problem. It may yield further information if dereferenced.
                type: string
                format: URI
        '503':
          description: >
            503 SERVICE UNAVAILABLE

            If the API producer encounters an internal overload situation of
            itself or of a system it relies on, it should respond with this
            response code, following the provisions in IETF RFC 7231 for the use
            of the "Retry-After" HTTP header and for the alternative to refuse
            the connection. The "ProblemDetails" structure may be omitted.
          headers:
            Content-Type:
              description: The MIME type of the body of the response.
              type: string
              maximum: 1
              minimum: 1
            WWW-Authenticate:
              description: >
                Challenge if the corresponding HTTP request has not provided
                authorization, or error details if the corresponding HTTP
                request has provided an invalid authorization token.
              type: string
              maximum: 1
              minimum: 0
            Version:
              description: |
                Version of the API used in the response.
              type: string
              maximum: 1
              minimum: 1
          schema:
            description: >
              The definition of the general "ProblemDetails" data structure from
              IETF RFC 7807 [19] is reproduced in this structure. Compared to
              the general framework defined in IETF RFC 7807 [19], the "status"
              and "detail" attributes are mandated to be included by the present
              document, to ensure that the response contains additional textual
              information about an error. IETF RFC 7807 [19] foresees
              extensibility of the "ProblemDetails" type. It is possible that
              particular APIs in the present document, or particular
              implementations, define extensions to define additional attributes
              that provide more information about the error. The description
              column only provides some explanation of the meaning to Facilitate
              understanding of the design. For a full description, see IETF RFC
              7807 [19].
            type: object
            required:
              - status
              - detail
            properties:
              type:
                description: >
                  A URI reference according to IETF RFC 3986 [5] that identifies
                  the problem type. It is encouraged that the URI provides
                  human-readable documentation for the problem (e.g. using HTML)
                  when dereferenced. When this member is not present, its value
                  is assumed to be "about:blank".
                type: string
                format: URI
              title:
                description: >
                  A short, human-readable summary of the problem type. It should
                  not change from occurrence to occurrence of the problem,
                  except for purposes of localization. If type is given and
                  other than "about:blank", this attribute shall also be
                  provided. A short, human-readable summary of the problem
                  type.  It SHOULD NOT change from occurrence to occurrence of
                  the problem, except for purposes of localization (e.g., using
                  proactive content negotiation; see [RFC7231], Section 3.4).
                type: string
              status:
                description: >
                  The HTTP status code for this occurrence of the problem. The
                  HTTP status code ([RFC7231], Section 6) generated by the
                  origin server for this occurrence of the problem.
                type: integer
              detail:
                description: >
                  A human-readable explanation specific to this occurrence of
                  the problem.
                type: string
              instance:
                description: >
                  A URI reference that identifies the specific occurrence of the
                  problem. It may yield further information if dereferenced.
                type: string
                format: URI

