code: def reconciliateNs(self, doc):
          
          if doc is None: doc__o = None
          else: doc__o = doc._o
          ret = libxml2mod.xmlReconciliateNs(doc__o, self._o)
          return ret
docs: This function checks that all the namespaces declared
            within the given tree are properly declared. This is needed
            for example after Copy or Cut and then paste operations.
            The subtree may still hold pointers to namespace
            declarations outside the subtree or invalid/masked. As much
            as possible the function try to reuse the existing
            namespaces found in the new environment. If not possible
            the new namespaces are redeclared on @tree at the top of
             the given subtree.