private static PagingInfo CreatePagination(Models.ContactsWithPagingInfo contacts)
 {
     if (contacts == null)
     {
         return(null);
     }
     return(new PagingInfo
     {
         PageNumber = contacts.PageNumber,
         PageSize = contacts.PageSize,
         Total = contacts.Total
     });
 }
 public static ContactsWithPagingInfo Create(this Models.ContactsWithPagingInfo contacts)
 => new ContactsWithPagingInfo
 {
     Pagination = CreatePagination(contacts),
     Contacts   = CreateContacts(contacts?.Contacts)
 };