code: def file_exists(filename):
      return file_exists_v2(filename)
  
imports: import binascii
  import os
  from posixpath import join
  import uuid
  import six
  from tensorflow.python.framework import errors
  from tensorflow.python.lib.io import _pywrap_file_io
  from tensorflow.python.util import compat
  from tensorflow.python.util import deprecation
  from tensorflow.python.util.tf_export import tf_export
label_desc: Use image node_id 2 for calling a global function with example usage: file_exists(filename) and returns: file_exists_v2