import { Client } from "https://deno.land/x/mtkruto@0.6.3/5_client.ts";
Add a single user to a chat.
Parameters
chatId: ID
The identifier of the chat to add the user to.
userId: ID
The identifier of the user to add to the chat.
optional
params: AddChatMemberParamsReturns
Promise<FailedInvitation[]>
An array of FailedInvitation that has at most a length of 1. If empty, it means that the user was added.