code: function qrcode(key, name, options) {
    // Options
    options = _.extend({
      type: 'svg',
      sync: false
    }, options || {});
  
    var link = otpauth(key, name);
  
    if (options.sync) {
      return qr.imageSync(link, {
        type: options.type,
        margin: 0
      });
    } else {
      return qr.image(link, {
        type: options.type,
        margin: 0
      });
    }
  }
docs: Creates a QR Code
  
  @param     {String}    key
  @param     {Name}    name
  @param     {Object}    options
  @return    {Stream}