import { AbstractBaseStrategy } from './abstract.base.strategy.js';
interface IOptions {
    ttl: number;
    isLazy: boolean;
    isCachedForever: boolean;
}
export declare class ExpirationStrategy extends AbstractBaseStrategy {
    getItem<T>(key: string): Promise<T | undefined>;
    setItem(key: string, content: any, options: Partial<IOptions>): Promise<void>;
    clear(): Promise<void>;
    private isItemExpired;
    private unsetKey;
}
export {};