code: def _GetGsScopes(self):
      
      service_accounts = self.watcher.GetMetadata(metadata_key=self.metadata_key)
      try:
        scopes = service_accounts[self.service_account]['scopes']
        return list(GS_SCOPES.intersection(set(scopes))) if scopes else None
      except KeyError:
        return None
docs: Return all Google Storage scopes available on this VM.