code: def list_tables(self):
          
          # Server does not do pagination on listings of this resource.
          # Return an iterator anyway for similarity with other API methods
          path = '/archive/{}/tables'.format(self._instance)
          response = self._client.get_proto(path=path)
          message = rest_pb2.ListTablesResponse()
          message.ParseFromString(response.content)
          tables = getattr(message, 'table')
          return iter([Table(table) for table in tables])
docs: Returns the existing tables.
  
          Tables are returned in lexicographical order.
  
          :rtype: ~collections.Iterable[.Table]