The documentation added in https://github.com/flutter/engine/pull/19817/files#diff-7bd3b7b603d20777383ec8011d615ddd4c1986b41d5840b0a3490d5c1b60a6f5R11-R16 didn't quite render as we had hoped: https://master-api.flutter.dev/flutter/dart-ui/SemanticsAction-class.html

cc @gaaclarke