code: function setup(encoding) {
    var stream = fs.createReadStream(path.join(__dirname, 'encoding.xml'));
    var xml = new XmlStream(stream, encoding);
    xml.on('endElement: node', function(node) {
      console.log(node);
    });
    xml.on('error', function(message) {
      console.log('Parsing as ' + (encoding || 'auto') + ' failed: ' + message);
    });
    return xml;
  }
docs: Create a file stream and pass it to XmlStream