code: public static base_response add(nitro_service client, systemgroup resource) throws Exception {
  		systemgroup addresource = new systemgroup();
  		addresource.groupname = resource.groupname;
  		addresource.promptstring = resource.promptstring;
  		addresource.timeout = resource.timeout;
  		return addresource.add_resource(client);
  	}
docs: Use this API to add systemgroup.