new_contents: import lxml.etree
  from slimit.parser import Parser
  from js2xml.xmlvisitor import XmlVisitor
  
  _parser = Parser()
  _visitor = XmlVisitor()
  
  def parse(text, debug=False):
      tree = _parser.parse(text, debug=debug)
      xml = _visitor.visit(tree)
      return xml
  
subject: Add js2xml.parse() method that wraps the slimit visitor/xml-builder