import type { ChannelId, Session } from '../types/index.js';
export interface ConversationStore {
    resolveConversationId(opts: {
        userId: string;
        channelId: ChannelId;
        windowMs?: number;
    }): Promise<string>;
    closeConversation(conversationId: string): Promise<void>;
    listSessions(conversationId: string): Promise<Session[]>;
}
export declare class InMemoryConversationStore implements ConversationStore {
    private activeByUser;
    private sessionsByConversation;
    resolveConversationId(opts: {
        userId: string;
        channelId: ChannelId;
        windowMs?: number;
    }): Promise<string>;
    closeConversation(conversationId: string): Promise<void>;
    listSessions(conversationId: string): Promise<Session[]>;
    upsertSession(session: Session): Promise<void>;
}