r">DefaultDartnessRouter</span> constructor 
    <a href="https://dart.dev/null-safety" class="feature feature-null-safety" title="Supports the null safety language feature.">Null safety</a>
</h1></div>

    <section class="multi-line-signature">
      <span class="name ">DefaultDartnessRouter</span>(<wbr><ol class="parameter-list"><li><span class="parameter" id="-param-router">{<span class="type-annotation"><a href="https://pub.dev/documentation/shelf_router/1.1.3/shelf_router/Router-class.html">Router</a>