code: def test_episode_length(self):
      self._env.episode_length = 16
      self._test_episode_length(self._env, length=16)
  
imports: from absl.testing import absltest
  import mock
  import numpy
  from pysc2.env import enums
  from pysc2.env import environment
  from pysc2.env import mock_sc2_env
  from pysc2.env import sc2_env
  from pysc2.lib import features
  from s2clientprotocol import common_pb2
  from s2clientprotocol import raw_pb2
  from s2clientprotocol import sc2api_pb2
label_desc: Use image node_id 7 for calling the TestTestEnvironment obj's underlying member method code with example usage: obj.test_episode_length() without return types