class LocalStorage implements SyncStorage {}
function constructor(name: string): LocalStorage;
let name: string;
let returnType: LocalStorage;
function getItem(key: string): null | string;
let key: string;
let returnType: null | string;
function removeItem(key: string): void;
let returnType: void;
function setItem(key: string, value: string): void;
let value: string;