">tuple</span><span class="macro">!</span>( <span class="macro">take</span><span class="macro">!</span>(<span class="number">3</span>), <span class="macro">tag</span><span class="macro">!</span>(<span class="string">&quot;de&quot;</span>) ))
);

<span class="macro">assert_eq</span><span class="macro">!</span>(
  <span class="ident">tuple</span>(<span class="kw-2">&amp;</span><span class="string">b&quot; \t abc de fg&quot;</span>[..]),
 <span class="prelude-val">Ok</span>((<span class="kw-2">&amp;</span><spa