toJson method
Implementation
core.Map<core.String, core.dynamic> toJson() => {
if (axis != null) 'axis': axis!,
if (chartType != null) 'chartType': chartType!,
if (compareMode != null) 'compareMode': compareMode!,
if (domains != null) 'domains': domains!,
if (headerCount != null) 'headerCount': headerCount!,
if (interpolateNulls != null) 'interpolateNulls': interpolateNulls!,
if (legendPosition != null) 'legendPosition': legendPosition!,
if (lineSmoothing != null) 'lineSmoothing': lineSmoothing!,
if (series != null) 'series': series!,
if (stackedType != null) 'stackedType': stackedType!,
if (threeDimensional != null) 'threeDimensional': threeDimensional!,
if (totalDataLabel != null) 'totalDataLabel': totalDataLabel!,
};