<pre class="rust item-decl"><code>pub enum Cow2&lt;'a, B: ?<a class="trait" href="{{channel}}/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a> + <a class="trait" href="trait.ToOwned.html" title="trait foo::ToOwned">ToOwned</a>&lt;<a class="primitive" href="{{channel}}/std/primitive.unit.html">()</a>&gt; + 'a&gt; {
    Borrowed(<a class="primitive" href="{{channel}}/std/primitive.reference.html">&amp;'a B</a>),
    Whatever(<a class="primitive" href="{{channel}}/std/primitive.u32.html">u32</a>),
}</code></pre>