toJson method
Implementation
Map<String, Object?> toJson() {
var columns = this.columns;
var constraintType = this.constraintType;
final json = <String, Object?>{};
json[r'columns'] = columns.map((i) => i.toJson()).toList();
if (constraintType != null) {
json[r'constraintType'] = constraintType;
}
return json;
}