public async Task <IActionResult> GetByRange(
     [FromQuery(Name = "page_size")] int page_size,
     [FromQuery(Name = "page")] int page)
 {
     if (page_size == 0 && page == 0)
     {
         var result = _service.Get();
         return(await ResponseList(result));
     }
     else
     {
         var skip   = (page - 1) * page_size;
         var result = _service.Get(skip, page_size);
         return(await ResponseList(result));
     }
 }
 public Secretary Get(long id)
 {
     return(_secretaryService.Get(id));
 }