 <p>Do you mean that it generates a <code>@property</code> declaration like this?</p> <pre><code>@property (nonatomic, retain) MyObject *object; </code></pre> <p>The <code>retain</code> property attribute means <code>strong</code> under ARC.</p> <p><a href="http://clang.llvm.org/docs/AutomaticReferenceCounting.html#ownership.spelling.property" rel="nofollow">4.1.1. Property declarations</a></p>