def __init__(self, code, contents=None, parent=None):
        Node.__init__(self, code=code, parent=parent)

        self.__contents = contents
 def __init__(self, parent, code, less, media):
     Node.__init__(self, parent=parent, code=code)
     
     self.__less  = less
     self.__media = media
 def __init__(self, parent, code, target, url):
     Node.__init__(self, parent=parent, code=code)
     
     self.__target = target
     self.__url    = url
 def __init__(self, code, name, parent, value):
     Node.__init__(self, code=code, parent=parent)
     
     self.__name = name
     self.__value = value
 def __init__(self, code, comment, parent):
     Node.__init__(self, code=code, parent=parent)
     
     self.__comment = comment
 def __init__(self, accessor, code, parent):
     Node.__init__(self, code=code, parent=parent)
     
     self.__accessor = accessor