class_docstr: Visitor to use with `traverse` to visit exactly the public TF API.
docstr: A map from parents to symbols that should not be descended into.
  
  This map can be edited, but it should not be edited once traversal has
  begun.
  
  Returns:
    The map marking symbols to not explore.
code: def do_not_descend_map(self):
      """A map from parents to symbols that should not be descended into.
  
      This map can be edited, but it should not be edited once traversal has
      begun.
  
      Returns:
        The map marking symbols to not explore.
      """
      return self._do_not_descend_map
  
file_path: tensorflow/tensorflow/tools/common/public_api.py
imports: import re
  from tensorflow.python.util import tf_inspect
label_desc: Use image node_id 3 for calling the PublicAPIVisitor obj's underlying member method code with example usage: obj.do_not_descend_map() and returns: self