private static void _user_anchor_removed(UnityARUserAnchorData anchor) { if (UnityARSessionNativeInterface.ARUserAnchorRemovedEvent != null) { ARUserAnchor userAnchorFromAnchorData = GetUserAnchorFromAnchorData(anchor); UnityARSessionNativeInterface.ARUserAnchorRemovedEvent(userAnchorFromAnchorData); } }