public static async Task <AttachmentContent> GetAssetByNameOrDefault(this ISquidexAttachmentClient that, string application, string fileName)
        {
            // todo : pagination, caching ??

            var data = await that.GetAllAssets(application, new ListRequest()
            {
                Skip = 0, Top = 200
            });

            var count = data.Total;

            if (count == 0)
            {
                return(default(AttachmentContent));
            }

            var item = data.Items.SingleOrDefault(d => CheckEquality(d, fileName));

            return(item);
        }