 id="debugger-param-when"><span class="type-annotation"><a href="dart-core/bool-class.html">bool</a></span> <span class="parameter-name">when</span>: <span class="default-value">true</span>, </span> <span class="parameter" id="debugger-param-message"><span class="type-annotation"><a href="dart-core/String-class.html">String</a></span> <span class="parameter-name">message</span></span> })
    </section>
    <section class="desc markdown">
      <p>If <code>when</code> is true, stop the program as if a breakp