s="parameter" id="-param-url"><span class="type-annotation"><a href="https://api.flutter.dev/flutter/dart-core/String-class.html">String</a>?</span> <span class="parameter-name">url</span>, </span><span class="parameter" id="-param-pingInterval"><span class="type-annotation"><a href="https://api.flutter.dev/flutter/dart-core/Duration-class.html">Duration</a>?</span> <span class="parameter-name">pingInterval</span></span>})</span>
        </dt>
        <dd>
          
        </dd>
    </dl>
  </section>
   