n class="returntype"><a href="dart-math/Rectangle-class.html">Rectangle</a><span class="signature">&lt;<wbr><span class="type-parameter"><a href="dart-core/num-class.html">num</a></span>&gt;</span></span>
                  <span class="name ">available</span>
          
</section>
        
                        <section class="summary source-code" id="source">
          <h2><span>Implementation</span></h2>
          <pre class="language-dart"><code class="language-dart">Rectangle get available =&gt;
    n