def method(self, method):
        ns = method.soap.input.body.namespace
        if ns[0] is None:
            ns = ('ns0', ns[1])
        method = Element(method.name, ns=ns)
        return method
Get the document root.  For I{rpc/(literal|encoded)}, this is the
dataset/ETHPy150Open CouchPotato/CouchPotatoServer/libs/suds/bindings/rpc.py/RPC.method