code: def testInactiveSecsZero(self):
      flags = FakeFlags(
          logdir="logdir",
          reload_multifile=True,
          reload_multifile_inactive_secs=0,
      )
      self.assertIsNone(
          data_ingester._get_event_file_active_filter(flags)
      )
  
imports: import ntpath
  import os
  import posixpath
  import time
  from unittest import mock
  from tensorboard import test
  from tensorboard.backend.event_processing import data_ingester
  from tensorboard.compat import tf
label_desc: Use image node_id 2 for calling the GetEventFileActiveFilterTest obj's underlying member method code with example usage: obj.testInactiveSecsZero() without return types