code: def initialize(self, dask_server=None, extra=None):
      self.server = dask_server
      self.extra = extra or {}
  
file_path: distributed/distributed/http/utils.py
imports: from __future__ import annotations
  import importlib
  import os
  import toolz
  from tornado import web
  from distributed.utils import has_keyword
label_desc: Use image node_id 1 for calling the RequestHandler obj's underlying member method code with example usage: obj.initialize(dask_server, extra) without return types