code: def _dummy_context():
      """A context manager which does nothing."""
      yield
  
imports: import collections
  import contextlib
  import functools
  import sys
  import numpy
  import tensorflow.compat.v2
  from tensorflow_probability.python.internal import dtype_util
  from tensorflow_probability.python.internal import prefer_static
  from tensorflow_probability.python.internal import tensorshape_util
label_desc: Use image node_id 3 for calling a global function with example usage: _dummy_context() without return types