public async Task <PagedResult <CountryResponse> > GetPageAsync(CountryPaginationRequest request)
        {
            PagedResult <CountryResponse> pagedResult = await _context
                                                        .Countries.AsQueryable()
                                                        .Select(i => new CountryResponse
            {
                Id   = i.Id,
                Name = i.Name
            })
                                                        .ToPagedResultAsync(request);

            return(pagedResult);
        }
        public async Task <IActionResult> GetPage([FromQuery] CountryPaginationRequest request = null)
        {
            PagedResult <CountryResponse> pagedResult = await Countries.GetPageAsync(request);

            return(ApiOk(pagedResult));
        }