setEffectPlaybackVolume method Null safety

Future<int> setEffectPlaybackVolume(
  1. int effectId,
  2. int volume
)

Set the playback volume for an audio effect file.

effectId ID of a specified audio effect. Each audio effect has a unique ID. volume publishing volume: 0 - 100. The default value is 100.

Implementation

Future<int> setEffectPlaybackVolume(int effectId, int volume) async {
  IntValue reply =
      await _api.setEffectPlaybackVolume(SetEffectPlaybackVolumeRequest()
        ..effectId = effectId
        ..volume = volume);
  return reply.value ?? -1;
}