code: def to_dict(self):
          
          obj_dict = super(Row, self).to_dict()
          cells_dict = [c.to_dict() for c in self.cells]
          child_dict = {
              'type': self.__class__.__name__,
              'cells': cells_dict
          }
          obj_dict.update(child_dict)
          return child_dict
docs: Render a MessageElement as python dict
  
          :return: Python dict representation
          :rtype: dict