toJson method
Implementation
core.Map<core.String, core.dynamic> toJson() => {
if (customFeatures != null) 'customFeatures': customFeatures!,
if (name != null) 'name': name!,
if (referenceColumns != null) 'referenceColumns': referenceColumns!,
if (referenceTable != null) 'referenceTable': referenceTable!,
if (tableColumns != null) 'tableColumns': tableColumns!,
if (tableName != null) 'tableName': tableName!,
if (type != null) 'type': type!,
};