code: function announce(message, {expire}) {
    const element = document.createElement('div');
  
    element.textContent = message;
    liveRegion.appendChild(element);
  
    return setTimeout(() => {
      liveRegion.removeChild(element);
    }, expire);
  }
docs: Announces message via live region
  @param {String} message
  @param {Object} options
  @param {Number} options.expire