code: function getDevice() {
    const language = navigator.language ? 'language' : 'userLanguage';
    return {
      h: screen.height,
      w: screen.width,
      dnt: getDNT() ? 1 : 0,
      language: navigator[language].split('-')[0],
      make: navigator.vendor ? navigator.vendor : '',
      ua: navigator.userAgent
    };
  }
docs: Return openrtb device object that includes ua, width, and height.
  
  @returns {Device} Openrtb device object