class_docstr: ``AsyncIOMainLoop`` creates an `.IOLoop` that corresponds to the
  current ``asyncio`` event loop (i.e. the one returned by
  ``asyncio.get_event_loop()``).  Recommended usage::
  
      from tornado.platform.asyncio import AsyncIOMainLoop
      import asyncio
      AsyncIOMainLoop().install()
      asyncio.get_event_loop().run_forever()
  
  See also :meth:`tornado.ioloop.IOLoop.install` for general notes on
  installing alternative IOLoops.
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code: def initialize(self, **kwargs):
      super(AsyncIOMainLoop, self).initialize(
          asyncio.get_event_loop(), close_loop=False, **kwargs
      )
  
imports: from __future__ import absolute_import, division, print_function
  import functools
  import tornado.concurrent
  from tornado.gen import convert_yielded
  from tornado.ioloop import IOLoop
  from tornado import stack_context
label_desc: Use image node_id 1 for calling the AsyncIOMainLoop obj's underlying member method code with example usage: obj.initialize() without return types