class_docstr: Wrapper around Tf_ApiDefMap that handles querying and deletion.
  
  The OpDef protos are also stored in this class so that they could
  be queried by op name.
class_docstr_tok: ["Wrapper","around","Tf_ApiDefMap","that","handles","querying","and","deletion",".","The","OpDef","protos","are","also","stored","in","this","class","so","that","they","could","be","queried","by","op","name","."]
code: def op_names(self):
      return self._op_per_name.keys()
  
imports: import contextlib
  from tensorflow.core.framework import api_def_pb2
  from tensorflow.core.framework import op_def_pb2
  from tensorflow.python.client import pywrap_tf_session
  from tensorflow.python.util import compat
  from tensorflow.python.util import tf_contextlib
label_desc: Use image node_id 6 for calling the ApiDefMap obj's underlying member method code with example usage: obj.op_names() and returns: self