public async Task <ActionResult <Adult> > GetAdultAsync([FromRoute] int id)
        {
            if (!ModelState.IsValid)
            {
                return(BadRequest(ModelState));
            }
            try
            {
                Adult adult = await FileAdapter.GetAdultAsync(id);

                if (adult == null)
                {
                    return(NotFound());
                }
                return(Ok(adult));
            }
            catch (Exception e)
            {
                Console.WriteLine(e);
                return(StatusCode(500, e.Message));
            }
        }