DataRefModel.assertRequired constructor

DataRefModel.assertRequired({
  1. String? id,
  2. List<String>? collection,
})

Constructs a new instance of DataRefModel, and asserts that all required parameters are not null.

Implementation

factory DataRefModel.assertRequired({String? id, List<String>? collection}) {
  assert(collection != null);
  return DataRefModel(id: id, collection: collection);
}