export interface TtlCacheOptions {
    ttlMs?: number;
}
export declare class TtlCache<T = any> {
    private readonly data;
    private readonly timers;
    private readonly ttl;
    constructor({ ttlMs }?: TtlCacheOptions);
    set(key: string, value: T, ttl?: number): void;
    get(key: string): T | undefined;
    has(key: string): boolean;
    delete(key: string): void;
    clear(): void;
    private cancelTimeout;
    private setTimeout;
}
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