code: def __enter__(self):
      pass
  
file_path: agents/tf_agents/benchmark/distribution_strategy_utils.py
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  from six.moves import range
  import tensorflow
label_desc: Use image node_id 1 for calling the DummyContextManager obj's underlying member method code with example usage: obj.__enter__() without return types