ConfirmDismissCallable typedef
typedef ConfirmDismissCallback = Future<bool?> Function(DismissDirection direction);
Implementation
typedef ConfirmDismissCallable = Callable1<Future<bool?>, DismissDirection>;
typedef ConfirmDismissCallback = Future<bool?> Function(DismissDirection direction);
typedef ConfirmDismissCallable = Callable1<Future<bool?>, DismissDirection>;