def _do_comment(self, node):
        if not _in_subset(self.subset, node): return
        if self.comments:
            W = self.write
            if self.documentOrder == _GreaterElement: W('\n')
            W('<!--')
            W(node.data)
            W('-->')
            if self.documentOrder == _LesserElement: W('\n')
_do_comment(self, node) -> None
dataset/ETHPy150Open AppScale/appscale/AppServer/google/appengine/api/SOAPpy/wstools/c14n.py/_implementation._do_comment