tring z = <span class="string_literal">"blah"</span>;
z.<span class="psymbol">shouldBeNull</span>();
</code></li>
      </ol>
    </div>
  </div>
</section>

  </p>
</div>
</section>

</div>

</li><li class="ddoc_member">
  <div class="ddoc_member_header">
  <div class="ddoc_header_anchor">
  <a href="#shouldNotBeNull" id="shouldNotBeNull"><code class="code">shouldNotBeNull</code></a>
</div>
</div><div class="ddoc_decl">
  <section class="section">
    <div class="declaration">
      <