An estimate of the number of files in a zip for a zip deployment.
If set, must be greater than or equal to the actual number of files.
Used for optimizing performance; if not provided, deployment may be slow.
URL of the zip file to deploy from. Must be a URL to a resource in
Google Cloud Storage in the form
'http(s)://storage.googleapis.com/\<bucket\>/\<object\>'.
URL of the zip file to deploy from. Must be a URL to a resource in
Google Cloud Storage in the form
'http(s)://storage.googleapis.com/\<bucket\>/\<object\>'.