code: def setUp(self):
      self._env = test_environment_decorator.TestEnvironmentDecorator(
          deepmind_lab.Lab(
              "tests/maze_navigation_test",
              maze_game_controller.REQUIRED_OBSERVATIONS,
          )
      )
      self._controller = maze_game_controller.MazeGameController(
          self._env
      )
      self._env.reset()
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import os
  from absl.testing import absltest
  import numpy
  import six
  import deepmind_lab
  from python.tests.utils import maze_game_controller
  from python.tests.utils import test_environment_decorator
label_desc: Use image node_id 1 for calling the MazeGameControllerTest obj's underlying member method code with example usage: obj.setUp() without return types