import { type ConversationSnapshot } from "./types";
import { type MessageData } from "../services/conversations";
import { ConversationHistoryStore, type ConversationSummary } from ".";
export declare function makeInMemoryConversationHistoryStore(): InMemoryConversationHistoryStore;
export declare class InMemoryConversationHistoryStore extends ConversationHistoryStore {
    protected conversations: Map<string, ConversationSnapshot>;
    protected subscribers: Set<() => void>;
    protected notify(): void;
    list(): Promise<ConversationSummary[]>;
    read(conversationId: string): Promise<ConversationSnapshot | null>;
    upsert(snapshot: ConversationSnapshot): Promise<void>;
    appendTurn(conversationId: string, turn: {
        user: MessageData;
        assistant: MessageData;
    }): Promise<void>;
    rename(conversationId: string, name: string): Promise<void>;
    remove(conversationId: string): Promise<void>;
    subscribe(listener: () => void): () => void;
}