code: def testAtariObsSpec(self):
      env = suite_atari.load("Pong-v0")
      self.assertIsInstance(env, py_environment.PyEnvironment)
      self.assertEqual(np.uint8, env.observation_spec().dtype)
      self.assertEqual((84, 84, 1), env.observation_spec().shape)
  
file_path: agents/tf_agents/environments/suite_atari_test.py
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  from absl import flags
  import numpy
  from tf_agents.environments import atari_wrappers
  from tf_agents.environments import py_environment
  from tf_agents.environments import suite_atari
  from tf_agents.utils import test_utils
label_desc: Use image node_id 7 for calling the SuiteAtariTest obj's underlying member method code with example usage: obj.testAtariObsSpec() without return types