private static void CrossFadeInFixedTimeInternal(ref PlayableHandle handle, int stateNameHash, float transitionDuration)
        {
            float fixedTime = 0f;
            int   layer     = -1;

            AnimatorControllerPlayable.INTERNAL_CALL_CrossFadeInFixedTimeInternal(ref handle, stateNameHash, transitionDuration, layer, fixedTime);
        }
 private static void CrossFadeInFixedTimeInternal(ref PlayableHandle handle, int stateNameHash, float transitionDuration, [DefaultValue("-1")] int layer, [DefaultValue("0.0f")] float fixedTime)
 {
     AnimatorControllerPlayable.INTERNAL_CALL_CrossFadeInFixedTimeInternal(ref handle, stateNameHash, transitionDuration, layer, fixedTime);
 }