code: def test_encoder_decoder_can_train_save_and_load(self):
      self.ensure_model_can_train_save_and_load(self.param_file)
  
file_path: magnitude/pymagnitude/third_party/allennlp/tests/models/encoder_decoders/simple_seq2seq_test.py
imports: from __future__ import division
  from __future__ import absolute_import
  import numpy
  import torch
  from allennlp.common.testing import ModelTestCase
  from allennlp.nn.util import sequence_cross_entropy_with_logits
label_desc: Use image node_id 2 for calling the SimpleSeq2SeqWithoutAttentionTest obj's underlying member method code with example usage: obj.test_encoder_decoder_can_train_save_and_load() without return types