code: def get_filtered_filenames(self):
      return EMPTY_SET
  
imports: import collections
  import inspect
  import threading
  from tensorflow.core.framework import graph_debug_info_pb2
  from tensorflow.python.util import _tf_stack
label_desc: Use image node_id 1 for calling the SentinelFilter obj's underlying member method code with example usage: obj.get_filtered_filenames() and returns: EMPTY_SET