The only time `IsSet` would be false is when `NewOption` was not used to initialize the value. e.g. var o Option[int32] or could have `None` helper func

The only time `IsSet` would be false is when `NewOption` was not used to initialize the value. e.g. var o Option[int32] or could have `None` helper func None[T any]() Option[T] { return Option[T]{} } o := None[int32]()