namespace AudioUnit
{
    public delegate AudioUnitStatus AURenderBlock(ref AudioUnitRenderActionFlags actionFlags, ref AudioTimeStamp timestamp, uint frameCount, nint outputBusNumber, AudioBuffers! outputData, AURenderPullInputBlock? pullInputBlock);
    {
        public virtual AudioUnitStatus EndInvoke(ref AudioUnitRenderActionFlags actionFlags, ref AudioTimeStamp timestamp, IAsyncResult result);
    }
}