er/dart-core/String-class.html">String</a>?</span> <span class="parameter-name">label</span>, </span><span class="parameter" id="addJob-param-description"><span class="type-annotation"><a href="https://api.flutter.dev/flutter/dart-core/String-class.html">String</a>?</span> <span class="parameter-name">description</span>, </span><span class="parameter" id="addJob-param-retryTime"><span class="type-annotation"><a href="https://api.flutter.dev/flutter/dart-core/int-class.html">int</a></span> <span class="param