# This name is not in the namespace because the autograph transformation
    # is not backloaded into Python.
    if name_str == 'ag__':
      return {type(AG_MODULE)}, AG_MODULE

    return None, None

  def res_value(self, ns, value):
    # resolves the type of the symbol by the metadata in 'value'
    if value is None:
      return {TFRTypes.NONE}