import { Api } from "https://deno.land/x/grammy@v1.31.1/mod.ts";
Use this method to unban a previously banned channel chat in a supergroup or channel. The bot must be an administrator for this to work and must have the appropriate administrator rights. Returns True on success.
Parameters
Unique identifier for the target chat or username of the target channel (in the format @channelusername)
optional
signal: AbortSignalOptional AbortSignal to cancel the request
Official reference: https://core.telegram.org/bots/api#unbanchatsenderchat