import IStorage from './storage';
declare class LocalStorage extends IStorage {
    constructor();
    getItem(key: string): Promise<string | null>;
    removeItem(key: string): Promise<void>;
    setItem(key: string, value: string): Promise<void>;
    clear(): Promise<void>;
    onChange(key: string, newVal: any, oldVal: any): void;
}
export default LocalStorage;