code: def testValidateWithBatchSize(self):
      batch_size = 2
      obs_spec = array_spec.BoundedArraySpec((2, 3), np.int32, -10, 10)
      env = random_py_environment.RandomPyEnvironment(
          obs_spec, batch_size=batch_size
      )
      utils.validate_py_environment(env)
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  from absl.testing.absltest import mock
  import numpy
  from tf_agents.environments import random_py_environment
  from tf_agents.environments import utils
  from tf_agents.specs import array_spec
  from tf_agents.trajectories import time_step
  from tf_agents.utils import test_utils
label_desc: Use image node_id 9 for calling the UtilsTest obj's underlying member method code with example usage: obj.testValidateWithBatchSize() without return types