var instance = new GcSpread.Sheets.ThreeScaleRule(minType,
                                                 minValue,
                                                 minColor,
                                                 midType,
                                                 midValue,
                                                 midColor,
                                                 maxType,
                                                 maxValue,
                                                 maxColor);
var value; // Type: any
value = instance.reset();