import { Conversation, Message, Session } from '../types';
/**
 * Converts legacy `Conversation` pairs into a flat `Message` list.
 *
 * Each conversation becomes a `user` message and, when a response is
 * present, an `assistant` message immediately after it.
 */
export declare function conversationsToMessages(conversations: Conversation[]): Message[];
/**
 * Returns `session.messages`, falling back to converting the deprecated
 * `session.conversations`. When both are present, `messages` wins.
 */
export declare function getSessionMessages(session?: Session | null): Message[];