toJson method
Implementation
core.Map<core.String, core.dynamic> toJson() => {
if (dashStyle != null) 'dashStyle': dashStyle!,
if (outlineFill != null) 'outlineFill': outlineFill!,
if (propertyState != null) 'propertyState': propertyState!,
if (weight != null) 'weight': weight!,
};