As title, it looks like the `State` class has many const and it can access from other classes. And we should add the `private` or `public` to let developers/users know their visibility. I think they're `public` constraint.
As title, it looks like the
Stateclass has many const and it can access from other classes.And we should add the
privateorpublicto let developers/users know their visibility.I think they're
publicconstraint.