entifier">Unit</span><span class="special">,</span> <span class="identifier">Y</span> <span class="special">&gt;</span> <span class="special">&gt;</span><span class="special">::</span><span class="identifier">type</span> <a name="boost.lambda.plain_return__idp109528704.type"></a><span class="identifier">type</span><span class="special">;</span>
<span class="special">}</span><span class="special">;</span></pre></div>
<div class="refsect1">
<a name="idp186678768"></a><h2>Description</h2>
<p>Partial specializa