code: def assertWatcherYields(self, values):
      self.assertEqual(list(self._watcher.Load()), values)
  
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 5 for calling the DirectoryWatcherTest obj's underlying member method code with example usage: obj.assertWatcherYields(values) without return types