setAudioFocus method
      
  
Future<int> 
setAudioFocus(
    
    
- TauPlayerCallback callback, {
 - AudioFocus? focus,
 - SessionCategory? category,
 - SessionMode? mode,
 - int? audioFlags,
 - AudioDevice? device,
 
override
    Implementation
@override
Future<int> setAudioFocus(TauPlayerCallback callback, {AudioFocus? focus, SessionCategory? category, SessionMode? mode, int? audioFlags, AudioDevice? device,} )
{
  return invokeMethod( callback, 'setAudioFocus', {'focus': focus!.index, 'category': category!.index, 'mode': mode!.index, 'audioFlags': audioFlags, 'device': device!.index ,},);
}