code: def public_url(self):
          
          return "{storage_base_url}/{bucket_name}/{quoted_name}".format(
              storage_base_url=_API_ACCESS_ENDPOINT,
              bucket_name=self.bucket.name,
              quoted_name=quote(self.name.encode("utf-8")),
          )
docs: The public URL for this blob.
  
          Use :meth:`make_public` to enable anonymous access via the returned
          URL.
  
          :rtype: `string`
          :returns: The public URL for this blob.