facebook-messenger-api-types/src/components/messages/SendApiMessage.d.ts

Typescript types for the Facebook messenger platform API (https://developers.facebook.com/docs/messenger-platform/reference)

import {RichMediaMessage} from './RichMediaMessage';
import {TemplateMessage} from './TemplateMessage';
import {TextMessage} from './TextMessage';

type AttachmentMessage = RichMediaMessage | TemplateMessage;

export type SendApiMessage = TextMessage | AttachmentMessage;