/// <summary>
            /// Gets the human body pose 2D joints for the current frame.
            /// </summary>
            /// <param name="defaultHumanBodyPose2DJoint">The default value for the body pose 2D joint.</param>
            /// <param name="screenWidth">The width of the screen, in pixels.</param>
            /// <param name="screenHeight">The height of the screen, in pixels.</param>
            /// <param name="screenOrientation">The orientation of the device so that the joint positions may be
            /// adjusted as required.</param>
            /// <param name="allocator">The allocator to use for the returned array memory.</param>
            /// <returns>
            /// The array of body pose 2D joints.
            /// </returns>
            /// <remarks>
            /// The returned array may be empty if the system does not detect a human in the camera image.
            /// </remarks>
            public override unsafe NativeArray <XRHumanBodyPose2DJoint> GetHumanBodyPose2DJoints(XRHumanBodyPose2DJoint defaultHumanBodyPose2DJoint,
                                                                                                 int screenWidth,
                                                                                                 int screenHeight,
                                                                                                 ScreenOrientation screenOrientation,
                                                                                                 Allocator allocator)
            {
                var joints = NativeApi.UnityARKit_HumanBodyProvider_AcquireHumanBodyPose2DJoints(screenWidth,
                                                                                                 screenHeight,
                                                                                                 screenOrientation,
                                                                                                 out int length,
                                                                                                 out int elementSize);

                try
                {
                    var returnJoints = NativeCopyUtility.PtrToNativeArrayWithDefault(defaultHumanBodyPose2DJoint,
                                                                                     joints, elementSize, length,
                                                                                     allocator);

                    return(returnJoints);
                }
                finally
                {
                    NativeApi.UnityARKit_HumanBodyProvider_ReleaseHumanBodyPose2DJoints(joints);
                }
            }