code: def teardown(self, worker):
      self.worker._my_plugin_status = "teardown"
  
      if self.expected_notifications is not None:
          assert len(self.observed_notifications) == len(
              self.expected_notifications
          )
          for expected, real in zip(
              self.expected_notifications, self.observed_notifications
          ):
              assert expected == real
  
file_path: distributed/distributed/diagnostics/tests/test_worker_plugin.py
imports: from __future__ import annotations
  import asyncio
  import warnings
  import pytest
  from distributed import Worker, WorkerPlugin
  from distributed.protocol.pickle import dumps
  from distributed.utils_test import async_poll_for, gen_cluster, inc
label_desc: Use image node_id 3 for calling the MyPlugin obj's underlying member method code with example usage: obj.teardown(worker) without return types