setVolume method
Implementation
Future<void> setVolume(double volume) async {
final int? id = _playerId;
if (id == null) return;
final double clamped = volume.clamp(0, 2).toDouble();
await UMediaChannel.call<void>(id, "setVolume", <String, Object?>{"volume": clamped});
_emit(value.copyWith(volume: clamped, muted: clamped == 0));
}