docs: def startLoop():
      """
      Use nested asyncio event loop for Jupyter notebooks.
      """
      def _ipython_loop_asyncio(kernel):
          '''
          Use asyncio event loop for the given IPython kernel.
          '''
          loop = asyncio.get_event_loop()
  
          def kernel_handler():
              kernel.do_one_iteration()
              loop.call_later(kernel._poll_interval, kernel_handler)
  
          loop.call_soon(kernel_handler)
          try:
              if not loop.is_running():
                  loop.run_forever()
          finally:
              if not loop.is_running():
                  loop.run_until_complete(loop.shutdown_asyncgens())
                  loop.close()
  
      patchAsyncio()
      loop = asyncio.get_event_loop()
      if not loop.is_running():
          from ipykernel.eventloops import register_integration, enable_gui
          register_integration('asyncio')(_ipython_loop_asyncio)
          enable_gui('asyncio')