   <div class="dlang">
        <p class="para">
          <code class="code">
            <span class="ddoc_anchor" id="shouldBeIn"></span>void <code class="code">shouldBeIn</code>(T, U)(T <code class="code">value</code>, U[] <code class="code">valid_values</code>, string <code class="code">file</code> = __FILE__, size_t <code class="code">line</code> = __LINE__);

          </code>
        </p>
      </div>
    </div>
  </section>
</div>
<div class="ddoc_decl">
  <section class="section ddoc_se