"-param-bytesDownloaded"><span>required</span> <span class="type-annotation"><a href="https://api.flutter.dev/flutter/dart-core/int-class.html">int</a></span> <span class="parameter-name">bytesDownloaded</span>, </span><span class="parameter" id="-param-totalBytes"><span>required</span> <span class="type-annotation"><a href="https://api.flutter.dev/flutter/dart-core/int-class.html">int</a></span> <span class="parameter-name">totalBytes</span>, </span><span class="parameter" id="-param-percentage"><span>requ