Creation of a new node element within a document. @ns and
           @content are optional (None).

def newDocRawNode(self, ns, name, content):
        """Creation of a new node element within a document. @ns and
           @content are optional (None). """
        if ns is None: ns__o = None
        else: ns__o = ns._o
        ret = libxml2mod.xmlNewDocRawNode(self._o, ns__o, name, content)
        if ret is None:raise treeError('xmlNewDocRawNode() failed')
        __tmp = xmlNode(_obj=ret)
        return __tmp