toJson method
Implementation
core.Map<core.String, core.dynamic> toJson() => {
if (categoricalValues != null) 'categoricalValues': categoricalValues!,
if (discreteValues != null) 'discreteValues': discreteValues!,
if (maxValue != null) 'maxValue': maxValue!,
if (minValue != null) 'minValue': minValue!,
if (parameterName != null) 'parameterName': parameterName!,
if (scaleType != null) 'scaleType': scaleType!,
if (type != null) 'type': type!,
};