interface MessageMetadataRe-exportimport { type MessageMetadata } from "https://deno.land/x/slack_web_api_client@0.4.5/mod.ts"; Type ParametersoptionalT extends string = stringPropertiesevent_type: Tevent_payload: { [key: string]: | string | number | boolean | MessageMetadataEventPayload | MessageMetadataEventPayload[]; }