 1384, in _do_call</span>
<span class="co">#&gt;     raise type(e)(node_def, op, message)</span></code></pre></div>
<p>Note that the error was thrown even though we are not using <code>tf.function()</code>. How does <code><a href="../reference/autograph.html">autograph(stopifnot(...))</a></code> guarantee that the created <code>tf$Assert()</code> Op is evaluated? With a multi-pronged, belt-and-suspenders approach:</p>
<ul>
<li>it calls <code>tf$identity()</code> on every symbol involved in the assert expres