code: def is_mapping(obj):
      """Returns a true if its input is a collections.Mapping."""
      return _is_mapping(obj)
  
imports: from tensorflow.python.util import _pywrap_nest
  from tensorflow.python.util import _pywrap_utils
  from tensorflow.python.util import nest_util
  from tensorflow.python.util.tf_export import tf_export
label_desc: Use image node_id 3 for calling a global function with example usage: is_mapping(obj) and returns: _is_mapping