code: def setup_method(self):
      super().setup_method()
      self.env = GymEnv(DummyDiscretePixelEnv(), is_image=True)
      self.sess.run(tf.compat.v1.global_variables_initializer())
      self.env.reset()
  
file_path: garage/tests/garage/tf/policies/test_categorical_cnn_policy.py
imports: import pickle
  from unittest import mock
  import numpy
  import pytest
  import tensorflow
  from garage.envs import GymEnv
  from garage.tf.policies import CategoricalCNNPolicy
  from tests.fixtures import TfGraphTestCase
  from tests.fixtures.envs.dummy import DummyDictEnv, DummyDiscretePixelEnv
label_desc: Use image node_id 1 for calling the TestCategoricalCNNPolicyImageObs obj's underlying member method code with example usage: obj.setup_method() without return types