t" valign="top">
<col>
</colgroup>
<tbody><tr>
<td><p><span class="term"><code class="computeroutput">arg</code></span></p></td>
<td><p>The object to bind the reference to.</p></td>
</tr></tbody>
</table></div></td>
</tr>
<tr>
<td><p><span class="term">Requires:</span></p></td>
<td>
<p><code class="computeroutput">U</code> is a model of <code class="computeroutput">Concept</code>. </p>
<p><code class="computeroutput">Concept</code> must not refer to any non-deduced placeholder besides <code class="computero