import type { ChatMessage, ConnectorResult } from "./types.js";
export declare const DEFAULT_CACHE_DIR: string;
export declare class ResponseCache {
    private readonly opts;
    constructor(opts: {
        cacheDir: string;
        maxAgeDays: number;
    });
    private cacheKey;
    private entryPath;
    private isExpired;
    get(model: string, messages: ChatMessage[]): Promise<ConnectorResult | null>;
    set(model: string, messages: ChatMessage[], result: ConnectorResult): Promise<void>;
}