code: def test_get_distribution_strategy_default(self):
      # Get a default strategy to compare against.
      default_strategy = tf.distribute.get_strategy()
  
      strategy = strategy_utils.get_strategy(tpu=False, use_gpu=False)
      self.assertIsInstance(strategy, type(default_strategy))
  
file_path: agents/tf_agents/train/utils/strategy_utils_test.py
imports: from absl.testing.absltest import mock
  import tensorflow.compat.v2
  from tf_agents.train.utils import strategy_utils
  from tf_agents.utils import test_utils
label_desc: Use image node_id 1 for calling the StrategyUtilsTest obj's underlying member method code with example usage: obj.test_get_distribution_strategy_default() without return types