/* * WS-Invoke * * invoke: Invoke a resource function * * call-seq: * client.invoke(options, uri, "method-name") -> XmlDoc * client.invoke(options, uri, "method-name", xml_doc) -> XmlDoc * */ WsXmlDocH invoke( client_opt_t *options, const char *resource_uri, const char *method, WsXmlDocH data = NULL) {