DraftModeValidator<T> typedef
DraftModeValidator<T> =
DraftModeValidationIssue? Function(DraftModeValidationValueContext? context, T? value)
Signature for validators used by field definitions and form attributes.
Implementation
typedef DraftModeValidator<T> = DraftModeValidationIssue? Function(
DraftModeValidationValueContext? context,
T? value,
);