code: def testPathFilter(self):
      self._watcher = directory_watcher.DirectoryWatcher(
          self._directory,
          _ByteLoader,
          lambda path: "do_not_watch_me" not in path,
      )
  
      self._WriteToFile("a", "a")
      self._WriteToFile("do_not_watch_me", "b")
      self._WriteToFile("c", "c")
      self.assertWatcherYields(["a", "c"])
      self.assertFalse(self._watcher.OutOfOrderWritesDetected())
  
imports: import os
  import shutil
  import tensorflow
  from tensorboard.backend.event_processing import directory_watcher
  from tensorboard.backend.event_processing import io_wrapper
label_desc: Use image node_id 14 for calling the DirectoryWatcherTest obj's underlying member method code with example usage: obj.testPathFilter() without return types