ing!(Span::call_site(), ...)</code>. Expands to <a href="https://doc.rust-lang.org/std/primitive.unit.html"><code>()</code></a> (unit type).</p>
</li>
<li>
<p><a href="struct.Diagnostic.html"><code>diagnostic</code></a>:</p>
<p>Build instance of <code>Diagnostic</code> in format-like style.</p>
</li>
</ul>
<h3 id="syntax" class="section-header"><a href="#syntax">Syntax</a></h3>
<p>All the macros have pretty much the same syntax:</p>
<ol>
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