/// <summary>
        /// Checks is the specified animation clip is imported from an external file, or created within the editor.
        /// </summary>
        /// <param name="clip">Clip to check.</param>
        /// <returns>True if the clip is imported from an external file (e.g. FBX file), or false if the clip is a native
        ///          resource created within the editor.</returns>
        public static bool IsClipImported(AnimationClip clip)
        {
            string resourcePath = ProjectLibrary.GetPath(clip);

            return(ProjectLibrary.IsSubresource(resourcePath));
        }