ai/src/generate-text/response-message.ts

AI SDK by Vercel - The AI Toolkit for TypeScript and JavaScript

import {
  AssistantModelMessage,
  ToolModelMessage,
} from '@ai-sdk/provider-utils';

/**
 * A message that was generated during the generation process.
 * It can be either an assistant message or a tool message.
 */
export type ResponseMessage = AssistantModelMessage | ToolModelMessage;