public void Image_List( int? ImageID = null, int? pending = null) { var myParams = new Dictionary<string, string>(); if (ImageID != null) myParams.Add("ImageID", ImageID.Value.ToString(CultureInfo.InvariantCulture)); if (pending != null) myParams.Add("pending", pending.Value.ToString(CultureInfo.InvariantCulture)); GetResponse<object>("image.list", myParams); }