interface MessageMetadataimport { type MessageMetadata } from "https://dotland.deno.dev/x/slack_web_api_client@1.1.2/mod.ts"; Type ParametersoptionalT extends string = stringPropertiesevent_type: Tevent_payload: { [key: string]: | null | string | number | boolean | MessageMetadataEventPayload | MessageMetadataEventPayload[]; }event_type: Tevent_payload: { [key: string]: | null | string | number | boolean | MessageMetadataEventPayload | MessageMetadataEventPayload[]; }event_type: Tevent_payload: { [key: string]: | null | string | number | boolean | MessageMetadataEventPayload | MessageMetadataEventPayload[]; }event_type: Tevent_payload: { [key: string]: | null | string | number | boolean | MessageMetadataEventPayload | MessageMetadataEventPayload[]; }import MessageMetadataimport { MessageMetadata } from "https://dotland.deno.dev/x/slack_web_api_client@1.1.2/mod.ts";