sion and then replaces those symbols in the current scope.</li>
<li>it leaves a <code>tf$control_dependency()</code> context open for the rest of the current execution scope.</li>
<li>it registers a frame exit hook with <code><a href="https://rdrr.io/r/base/on.exit.html">on.exit()</a></code> that calls <code>tf$identity()</code> on the return value and then closes the control dependency context.</li>
</ul>
<p><code><a href="../reference/autograph.html">autograph(stopifnot(...))</a></code> only does these ad