passes method
Validates the value using the given context.
Returns true if valid, otherwise false.
Implementation
@override
FutureOr<bool> passes(ValidationContext context) {
final value = context.value;
final args = context.parameters;
if (value == null || args.isEmpty) return false;
if (value is! String) return false;
final prefixes = args.map((e) => e.trim()).toList();
return prefixes.any((prefix) => value.startsWith(prefix));
}