code: def current_ioloop(io_loop):
      '''
      A context manager that will set the current ioloop to io_loop for the context
      '''
      orig_loop = tornado.ioloop.IOLoop.current()
      io_loop.make_current()
      try:
          yield
      finally:
          orig_loop.make_current(f current_ioloop(io_loop):
      '''
      A context manager that will set the current ioloop to io_loop for the context
      '''
      orig_loop = tornado.ioloop.IOLoop.current()
      io_loop.make_current()
      try:
          yield
      finally:
          orig_loop.make_current()
docs: A context manager that will set the current ioloop to io_loop for the context