text: public virtual ModifyClusterParameterGroupResponse ModifyClusterParameterGroup(ModifyClusterParameterGroupRequest request){var options = new InvokeOptions();options.RequestMarshaller = ModifyClusterParameterGroupRequestMarshaller.Instance;options.ResponseUnmarshaller = ModifyClusterParameterGroupResponseUnmarshaller.Instance;return Invoke<ModifyClusterParameterGroupResponse>(request, options);}