lass="Punctuation">)</span>
      <span class="Identifier">assert</span> <span class="Identifier">inst</span><span class="Operator">.</span><span class="Identifier">data</span> <span class="Operator">==</span> <span class="DecNumber">1</span>
  <span class="Keyword">except</span> <span class="Identifier">ValueError</span><span class="Punctuation">:</span>
    <span class="Identifier">echo</span> <span class="StringLit">&quot;Caught expected ValueError&quot;</span>

<span class="Keyword">var</span> <span cla