import type { ChallengeData } from '@cap.js/server';
import Store from './store.js';
export default class MemoryStore implements Store {
    #private;
    challenges: {
        store: (token: string, challengeData: ChallengeData) => Promise<void>;
        read: (token: string) => Promise<ChallengeData | null>;
        delete: (token: string) => Promise<void>;
        deleteExpired: () => Promise<void>;
    };
    tokens: {
        store: (token: string, expires: number) => Promise<void>;
        get: (token: string) => Promise<number | null>;
        delete: (token: string) => Promise<void>;
        deleteExpired: () => Promise<void>;
    };
}