Changes to POST /api/v2/imports

added the new optional request property base64Encoded

added the new optional request property desired_type

added the new optional request property file

added the new optional request property library

added the new optional request property totalFiles

request body became optional

the request property assetUid became nullable

the request property destination became nullable

the request property name became nullable

the request property url became nullable

the request property assetUid became optional

the request property destination became optional

the request property url became optional

removed the required property detail from the response with the 400 status

added the required property detail to the response with the 400 status

removed the required property detail from the response with the 400 status