interface Chat.GroupChatimport { type Chat } from "https://dotland.deno.dev/x/grammy@v1.31.1/types.deno.ts"; const { GroupChat } = Chat; Internal type for group chats Propertiesid: numberUnique identifier for this chat. type: "group"Type of the chat, can be either “private”, “group”, “supergroup” or “channel” title: stringTitle, for supergroups, channels and group chats optionalusername: undefinedUsername, for private chats, supergroups and channels if available optionalfirst_name: undefinedFirst name of the other party in a private chat optionallast_name: undefinedLast name of the other party in a private chat optionalis_forum: undefinedTrue, if the supergroup chat is a forum (has topics enabled)