annoCode property
The annotation re-instantiation, with {{<library uri>}} markers
before every identifier the generator must import, e.g.
{{package:flutter/widget_previews.dart}}Preview(name: 'x', wrapper: {{package:app/ui/x.dart}}cardWrapper).
null on bare/missing entries and when rewriting was impossible
(see note) — the entry then mounts with no fields applied.
Implementation
final String? annoCode;