method Context.prototype.getAuthorimport { Context } from "https://dotland.deno.dev/x/grammy@v1.12.0/mod.ts"; getAuthor(signal?: AbortSignal)Context-aware alias for api.getChatMember. Use this method to get information about a member of a chat. Returns a ChatMember object on success. Parametersoptionalsignal: AbortSignalOptional AbortSignal to cancel the request Official reference: https://core.telegram.org/bots/api#getchatmember