public TEntity Update(TEntity entity)
        {
            if (entity == null)
            {
                throw new ArgumentNullException($"{nameof(Update)} entity must not be null");
            }

            try
            {
                _context.Update(entity);
                // await _context.SaveChangesAsync();

                return(entity);
            }
            catch (Exception)
            {
                throw new Exception($"{nameof(entity)} could not be updated");
            }
        }