code: def setup_method(self):
      super().setup_method()
      self.env = GymEnv(DummyDiscretePixelEnv())
      self.obs = self.env.reset()[0]
  
imports: import pickle
  from unittest import mock
  import numpy
  import pytest
  import tensorflow
  from garage.envs import GymEnv
  from garage.tf.models import CNNModel
  from garage.tf.q_functions import DiscreteCNNQFunction
  from tests.fixtures import TfGraphTestCase
  from tests.fixtures.envs.dummy import DummyDiscreteEnv, DummyDiscretePixelEnv
  from tests.fixtures.models import SimpleCNNModel, SimpleCNNModelWithMaxPooling, SimpleMLPModel
label_desc: Use image node_id 1 for calling the TestDiscreteCNNQFunction obj's underlying member method code with example usage: obj.setup_method() without return types