code: def test_checks_constructors(self):
      self._set_default_specs()
      # pytype: disable=wrong-arg-types
      with self.assertRaisesRegex(TypeError, ".*non-callable.*"):
          parallel_py_environment.ParallelPyEnvironment(
              [
                  random_py_environment.RandomPyEnvironment(
                      self.observation_spec, self.action_spec
                  )
              ]
          )
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import collections
  import functools
  import time
  import numpy
  import tensorflow
  from tf_agents.environments import parallel_py_environment
  from tf_agents.environments import py_environment
  from tf_agents.environments import random_py_environment
  from tf_agents.specs import array_spec
  from tf_agents.system import system_multiprocessing
  from tf_agents.trajectories import time_step
label_desc: Use image node_id 6 for calling the ParallelPyEnvironmentTest obj's underlying member method code with example usage: obj.test_checks_constructors() without return types