docstr: Run when a worker leaves the cluster
docstr_tok: ["Run","when","a","worker","leaves","the","cluster"]
code: def remove_worker(self, scheduler=None, worker=None, **kwargs):
      """Run when a worker leaves the cluster"""
      self.socket.send("remove_worker", {"worker": worker})
  
file_path: distributed/distributed/diagnostics/websocket.py
imports: from __future__ import annotations
  from dask.utils import key_split
  from distributed.diagnostics.plugin import SchedulerPlugin
  from distributed.diagnostics.task_stream import colors
label_desc: Use image node_id 4 for calling the WebsocketPlugin obj's underlying member method code with example usage: obj.remove_worker(scheduler, worker) without return types