code: function xmlFileGet(file, element, attributeName, options) {
    options = _.sanitize(options, {encoding: 'utf-8', retryOnENOENT: true, default: null});
  
    const doc = loadXmlFile(file, options);
    const node = getXmlNode(doc, element);
  
    let value;
    if (_.isEmpty(attributeName)) {
      value = _.map(node.childNodes, 'nodeValue');
    } else {
      value = node.getAttribute(attributeName);
      // Always return an array
      value = [value];
    }
    return _.isUndefined(value) ? options.default : value;
  }
docs: Get value from XML file
  
  @function $file~xml/get
  @param {string} file - XML File to read the value from
  @param {string} element - XPath expression to the element from which to read the attribute (null if text node)
  @param {string} attribute - Attribute to get the value from (if empty, will return the text of the node element)
  @param {Object} [options]
  @param {string} [options.encoding=utf-8] - Encoding used to read the file
  @param {string} [options.default=''] - Default value if key not found
  @throws Will throw an error if the path is not a file
  @throws Will throw an error if the XPath is not valid
  @throws Will throw an error if the XPath is not found
  @example
  // Get 'charset' atribute of node //html/head/meta
  $file.ini.get('index.html', '//html/head/meta', 'charset');
  // => 'UTF-8'