code: def _build(self, obs_input, name=None):
      del name
      h1, _ = self._parent_model.build(obs_input).outputs
      return self._output_model.build(h1).outputs
  
imports: import pickle
  import numpy
  import pytest
  import tensorflow
  from garage.tf.models.mlp import mlp
  from garage.tf.models.model import Model
  from tests.fixtures import TfGraphTestCase
label_desc: Use image node_id 3 for calling the ComplicatedModel2 obj's underlying member method code with example usage: obj._build(obs_input, name) and returns: self