import type { RDAPResponse } from '../../shared/types';
import type { CacheOptions } from '../../shared/types/options';
export interface ICache {
    get(key: string): Promise<RDAPResponse | null>;
    set(key: string, value: RDAPResponse, ttl?: number): Promise<void>;
    delete(key: string): Promise<void>;
    clear(): Promise<void>;
    has(key: string): Promise<boolean>;
    size(): Promise<number>;
}
export declare class CacheManager implements ICache {
    private cache;
    private readonly ttl;
    private readonly enabled;
    constructor(options?: CacheOptions);
    get(key: string): Promise<RDAPResponse | null>;
    set(key: string, value: RDAPResponse, ttl?: number): Promise<void>;
    delete(key: string): Promise<void>;
    clear(): Promise<void>;
    has(key: string): Promise<boolean>;
    size(): Promise<number>;
    getStats(): Promise<{
        size: number;
        enabled: boolean;
        ttl: number;
    }>;
}
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