code: def setup_method(self):
      super().setup_method()
      self.encoder = ComposeEncoder(
          [
              _make_feedforward(9, 5),
              _make_feedforward(5, 10),
              _make_feedforward(10, 3),
          ]
      )
  
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 1 for calling the TestPassThroughEncoder obj's underlying member method code with example usage: obj.setup_method() without return types