public Task <ActionResult> GetListOfStringsAsync([FromServices] IGetListOfStringsHandler handler, CancellationToken cancellationToken)
        {
            if (handler is null)
            {
                throw new ArgumentNullException(nameof(handler));
            }

            return(InvokeGetListOfStringsAsync(handler, cancellationToken));
        }
 private static async Task <ActionResult> InvokeGetListOfStringsAsync([FromServices] IGetListOfStringsHandler handler, CancellationToken cancellationToken)
 {
     return(await handler.ExecuteAsync(cancellationToken));
 }