private bool isGraspAxisConfigured(InteractionXRController controller)
 {
     try {
         Input.GetAxis(controller.graspButtonAxis);
         return(true);
     }
     catch (ArgumentException) {
         return(false);
     }
 }
        private void checkInteractionVRControllerStatus(InteractionXRController controller,
                                                        List <ControllerStatusMessage> messages)
        {
            // Check if the controller is configured correctly if it is set up with a custom
            // tracking provider.
            if (controller.isUsingCustomTracking)
            {
                messages.Add(new ControllerStatusMessage()
                {
                    message = "Custom Tracking Provider",
                    tooltip = "You are using a custom tracking provider for this VR controller.",
                    color   = Colors.Caution
                });
            }

            // Check if the player has duplicate VRNode left controllers or right controllers.
            bool isLeftVRNodeController = controller.trackingProvider is DefaultXRNodeTrackingProvider &&
                                          controller.chirality == Chirality.Left;
            bool isRightVRNodeController = controller.trackingProvider is DefaultXRNodeTrackingProvider &&
                                           controller.chirality == Chirality.Right;

            if (isLeftVRNodeController && _leftVRNodeController != null ||
                isRightVRNodeController && _rightVRNodeController != null)
            {
                var alreadyExistsController = isLeftVRNodeController ? _leftVRNodeController : _rightVRNodeController;

                string message;
                string tooltip;
                Color  color;

                if (controller.deviceJoystickTokens.Equals(alreadyExistsController.deviceJoystickTokens))
                {
                    message = "Duplicate VR Controller";
                    tooltip = "You already have a VRNode controller with this chirality and device "
                              + "string in your scene. You should remove one of the duplicates.";
                    color = Colors.Problem;
                }
                else
                {
                    message = "Multiple VR Controllers";
                    tooltip = "You have multiple VR controllers of the same chirality enabled with "
                              + "different device strings. If both device strings match attached "
                              + "Unity joysticks, you may get duplicate controllers.";
                    color = Colors.Caution;
                }

                messages.Add(new ControllerStatusMessage()
                {
                    message = message,
                    tooltip = tooltip,
                    color   = color
                });
            }

            if (isLeftVRNodeController)
            {
                _leftVRNodeController = controller;
            }
            if (isRightVRNodeController)
            {
                _rightVRNodeController = controller;
            }

            string wrongChiralityToken = controller.isLeft ? "right" : "left";

            if (controller.deviceJoystickTokens.Contains(wrongChiralityToken))
            {
                messages.Add(new ControllerStatusMessage()
                {
                    message = "Wrong Chirality?",
                    tooltip = "This VR controller's device joystick string specifies a chirality "
                              + "that is different from the chirality of the controller itself. You "
                              + "should confirm this controller's device string or chirality setting.",
                    color = Colors.Warning
                });
            }
        }