interface StorageOptions {
    prefix?: string;
    ttl?: number;
}
declare class StorageWrapper {
    private prefix;
    private ttl;
    private cache;
    constructor(options?: StorageOptions);
    private getKey;
    private isExpired;
    setItem(key: string, value: any): void;
    getItem(key: string): any;
    removeItem(key: string): void;
    clear(): void;
}
declare const _default: StorageWrapper;
export default _default;
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