Response variable not updated after the GET call

https://forge.etsi.org/rep/nfv/api-tests/blob/2.4.1-fix-plu/SOL003/VNFPackageManagement-API/VNFPackageManagementKeywords.robot Check Postcondition VNFD Exist
Log Checking that vnf pacakge still exists
Set Headers {"Accept": "${ACCEPT_PLAIN}"}
Set Headers {"Accept": "${ACCEPT_ZIP}"}
Run Keyword If {AUTH_USAGE} == 1 Set Headers {"Authorization": "{AUTHORIZATION}"}
GET {apiRoot}/{apiName}/{apiVersion}/vnf_packages/{vnfPkgZipVNFD}/vnfd
Check HTTP Response Status Code Is 200
Suggest to add the following lines after GET if possible:
${output}= Output response
Set Suite Variable ${response} ${output}