code: def _GetFileAndLine():
      """Returns (filename, linenumber) for the stack frame."""
      code, f = _get_caller()
      if not code:
          return ("<unknown>", 0)
      return (code.co_filename, f.f_lineno)
  
imports: import logging
  import os
  import sys
  import _thread
  import time
  import traceback
  from logging import DEBUG
  from logging import ERROR
  from logging import FATAL
  from logging import INFO
  from logging import WARN
  import threading
  from tensorflow.python.util.tf_export import tf_export
label_desc: Use image node_id 18 for calling a global function with example usage: _GetFileAndLine() and returns: code,  f, str,  int