def method(self, method):
        """
        Get the document root.  For I{rpc/(literal|encoded)}, this is the
        name of the method qualifed by the schema tns.
        @param method: A service method.
        @type method: I{service.Method}
        @return: A root element.
        @rtype: L{Element}
        """
        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
        name of the method qualifed by the schema tns.
        @param method: A service method.
        @type method: I{service.Method}
        @return: A root element.
        @rtype: L{Element}