@property
def output_size(self):
    return BasicDecoderOutput(rnn_output=self._rnn_output_size(), sample_id=self._helper.sample_ids_shape, projection_input=self._projection_input_size())
@property
def output_size(self):
    return BasicDecoderOutput(rnn_output=self._rnn_output_size(), sample_id=self._helper.sample_ids_shape, projection_input=self._projection_input_size())