Enum live template with when method like freezed sealed classes

enumwhen.dart

enum $NAME$ {
  $V1$,
  $V2$,
}

extension $NAME$X on $NAME$ {
  T when<T>({
    required T Function() $V1$,
    required T Function() $V2$,
  }) {
    switch (this) {
      case $NAME$.$V1$:
        return $V1$();
      case $NAME$.$V2$:
        return $V2$();
    }
  }
}

Each variable settings