

        <section class="multi-line-signature">
          <a href="https://api.dart.dev/stable/2.15.1/dart-core/String-class.html">String</a>
          <span class="name ">label</span>
          <div class="features">final</div>

        </section>
        
<section class="desc markdown">
  <p>A string used for display of the selectable elements</p>
</section>

        
<section class="summary source-code" id="source">
  <h2><span>Implementation</span></h2>
  <pre class="language-dart"><code class="languag