public void Avail_Kernels( bool? isKVM = null, bool? isXen = null) { var myParams = new Dictionary<string, string>(); if (isKVM != null) myParams.Add("isKVM", isKVM.Value ? "true" : "false"); if (isXen != null) myParams.Add("isXen", isXen.Value ? "true" : "false"); GetResponse<object>("avail.kernels", myParams); }