toJson method
Implementation
core.Map<core.String, core.dynamic> toJson() => {
if (color != null) 'color': color!,
if (colorStyle != null) 'colorStyle': colorStyle!,
if (dataLabel != null) 'dataLabel': dataLabel!,
if (lineStyle != null) 'lineStyle': lineStyle!,
if (pointStyle != null) 'pointStyle': pointStyle!,
if (series != null) 'series': series!,
if (styleOverrides != null) 'styleOverrides': styleOverrides!,
if (targetAxis != null) 'targetAxis': targetAxis!,
if (type != null) 'type': type!,
};