code: def test_mismatched_bidirectionality(self):
      with pytest.raises(ValueError):
          ComposeEncoder(
              [
                  MockSeq2SeqEncoder(input_dim=9, output_dim=5),
                  MockSeq2SeqEncoder(
                      input_dim=5, output_dim=2, bidirectional=True
                  ),
              ]
          )
  
imports: import torch
  import numpy
  import pytest
  from allennlp.common.testing import AllenNlpTestCase
  from allennlp.modules.seq2seq_encoders import ComposeEncoder, FeedForwardEncoder, Seq2SeqEncoder
  from allennlp.modules import FeedForward
label_desc: Use image node_id 7 for calling the TestPassThroughEncoder obj's underlying member method code with example usage: obj.test_mismatched_bidirectionality() without return types