import type { BlacklistStore } from './BlacklistStore.js';
/**
 * In-memory blacklist suitable for tests and single-node deployments.
 */
export declare class MemoryBlacklistStore implements BlacklistStore {
    private readonly entries;
    /**
     * @inheritdoc
     */
    set(key: string, ttlSeconds: number): Promise<void>;
    /**
     * @inheritdoc
     */
    has(key: string): Promise<boolean>;
    /**
     * @inheritdoc
     */
    delete(key: string): Promise<void>;
    /**
     * @inheritdoc
     */
    flush(): Promise<void>;
}
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