build method
Implementation
@override
String build(Context context, ParserResult? result) {
  final predicate = _getPredicate();
  final parser = TakeWhile(predicate);
  return parser.build(context, result);
}@override
String build(Context context, ParserResult? result) {
  final predicate = _getPredicate();
  final parser = TakeWhile(predicate);
  return parser.build(context, result);
}