How to send whisper and how to listen all twich chanels? Python

Chat and IRC
3
  1. Where I can see the documentation on this command. I look to https://dev.twitch.tv/docs/v5/reference/chat/ and don’t found any mention of this command
  2. Ok. It’s not good for my task.

Could you then say how many channels I can pass through the V5 API in the list of channels the bot to listen to?