declare class PassportCache {
    private name;
    private cachedMS;
    private pool;
    constructor(name: string, cachedMS: number);
    private getKey;
    saveAsync(key: string, value: string): Promise<void>;
    getAsync(key: string): Promise<string | null>;
    removeAsync(key: string): Promise<void>;
}
export declare function getPassportCache(name: string, cachedMS: number): PassportCache;
export declare function getOauthCache(name: string): PassportCache;
export {};