export function getUID(): string {
  return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, (c) => {
    // tslint:disable-next-line: no-bitwise
    const r = (Math.random() * 16) | 0;
    // tslint:disable-next-line: no-bitwise
    const v = c === 'x' ? r : (r & 0x3) | 0x8;
    return v.toString(16);
  });
}