import { CoreUserMessage } from '@mastra/core/llm';
import { MastraUIMessage } from '../types';
/**
 * Converts a CoreUserMessage to a MastraUIMessage (UIMessage format).
 *
 * Handles all CoreUserMessage content types:
 * - String content → single text part
 * - Array content with text/image/file parts → corresponding UIMessage parts
 */
export declare const fromCoreUserMessageToUIMessage: (coreUserMessage: CoreUserMessage) => MastraUIMessage;
