export interface Ioption {
    domain?: string;
    path?: string;
    expires?: number;
    secure?: boolean;
}
export declare type setFn = (key: string, value: any, option?: Ioption) => boolean;
export declare type getFn = (key: string) => string | null;
export declare type clearFn = (key: string, domain?: string) => boolean;
export declare type storeType = 'cookie' | 'localStorage' | 'sessionStorage';
export interface IhandleStorage {
    set: setFn;
    get: getFn;
    clear: clearFn;
}
export interface Istorage {
    sessionStorage: IhandleStorage | null;
    localStorage: IhandleStorage | null;
    cookie: IhandleStorage | null;
    get: (key: string, storeType?: storeType) => string | null | undefined;
    set: (key: string, value: string, storeType?: storeType, option?: Ioption) => boolean;
    clear: (key: string, storeType?: storeType, domain?: string) => boolean;
}
export declare const storage: Istorage;
export default storage;