code: def teardown_method(self):
      self.env.close()
      self.env_g.close()
  
file_path: garage/tests/garage/envs/wrappers/test_grayscale_env.py
imports: import gym.spaces
  import numpy
  import pytest
  from garage.envs.wrappers import Grayscale
  from tests.fixtures.envs.dummy import DummyDiscretePixelEnv
label_desc: Use image node_id 2 for calling the TestGrayscale obj's underlying member method code with example usage: obj.teardown_method() without return types