str
The generated Google Cloud Storage signed URL
that should be used for a function source code
upload. The uploaded file should be a zip
archive which contains a function.
storage_source
google.cloud.functions_v2.types.StorageSource
The location of the source code in the upload bucket.
Once the archive is uploaded using the ``upload_url`` use
this field to set the
``function.build_config.source.storage_source`` during
CreateFunction and UpdateFunction.
Generation defaults to 0, as Cloud Storage provides a new
generation only upon uploading a new object or version of an
object.