getCollectionGroup<T extends Object<T> > method
Implementation
Future<List<T>> getCollectionGroup<T extends object.Object<T>>({
required Query<Map<String, dynamic>> reference,
Query<Object?> Function(Query<Map<String, dynamic>>)? query,
}) {
final q = query == null ? reference : query(reference);
return _getInternalCollection(query: q);
}