Retrieve HostCallbackInfo from AudioKit to Sync IAA and AKSequencer

Question

I'm struggled trying to sync AKSequencer with IAA. Need to get HostCallbackInfo from the AudioUnit. In Core Audio and ObjC, would be something like this:

UInt32 dataSize = sizeof(HostCallbackInfo);
callBackInfo = (HostCallbackInfo*) malloc(dataSize);
OSStatus result = AudioUnitGetProperty(audioController.audioUnit, kAudioUnitProperty_HostCallbacks, kAudioUnitScope_Global, 0, callBackInfo, &dataSize);

Now, with AudioKit and AKSequencer in Swift, how can I get this HostCallbackInfo data ?