            <dd>acquire an immutable access to the closure wrapper object</dd>
            <dt id="ab6397b18772820fafe6a613f906976ce">
              <span class="m-doc-wrap-bumper">auto <a href="#ab6397b18772820fafe6a613f906976ce" class="m-doc-self">closure_wrapper</a>(</span><span class="m-doc-wrap">) -&gt; C&amp;</span>
            </dt>
            <dd>acquire a mutable access to the closure wrapper object</dd>
            <dt id="a99e23ce7c0faf3a932ab2b7ac51e58f4">
              <div class="m-doc-templa