title: Is it possible to hide a @property in a subclass?
body: <p>My app subclasses <code>UICollectionViewFlowLayout</code> and uses all of its properties <strong>except for</strong> <code>minimumLineSpacing</code>. To avoid confusion, I'd like to be able to "hide" <code>minimumLineSpacing</code> from the outside, so it looks like my subclass doesn't even support it. Is this possible?</p>