toJson method
Implementation
core.Map<core.String, core.dynamic> toJson() => {
if (calculatedColumns != null) 'calculatedColumns': calculatedColumns!,
if (dataSourceId != null) 'dataSourceId': dataSourceId!,
if (sheetId != null) 'sheetId': sheetId!,
if (spec != null) 'spec': spec!,
};