Trying to understand Long Polling using Channel 2

Channels has to be one of the great libs I've used. However didn't find enough examples on how to implement long polling.
So according to my understanding is that when request is received the   "LongPollConsumer" consumer handler  function send a "don't close body" by using more_body=True param.

Often during WebSockets the "group.send" is not implemented on the consumer rather outside.When using long poll how can i get the *request to send a response back to the client  and close it assuming am outside the consumer?

import json  from channels.generic.http import AsyncHttpConsumer    class LongPollConsumer(AsyncHttpConsumer):      async def handle(self, body):          await self.send_headers(headers=[              ("Content-Type", "application/json"),          ])          await self.send_body(b"", more_body=True)        async def chat_message(self, event):          await self.send_body(json.dumps(event).encode("utf-8"))

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