import type { CoreMessage } from 'ai';
import type { StoredMessage } from '../types.js';
export declare function extractSearchableText(message: any): string;
export declare function toStoredMessage(message: CoreMessage, conversationId: string, userId: string, messageId: string): StoredMessage;
export declare function toCoreMessage(stored: StoredMessage): CoreMessage;
export declare function deduplicateMessages(messages: CoreMessage[], storedMessages: StoredMessage[]): CoreMessage[];
export declare function generateMessageId(): string;
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