add method
Implementation
Future<DocRef<T>> add(T value) async {
if (_ref_windows != null) {
var document = await _ref_windows!.add(value is Map<String, dynamic>
? value
: _converter!.toFirestore(value, null));
return doc(document.id);
} else {
var document = await _ref_original!.add(value is Map<String, dynamic>
? value
: _converter!.toFirestore(value, null));
return doc(document.id);
}
}