public static async Task <IPagedList <T> > Create(IQueryable <T> superset, int pageNumber, int pageSize)
    {
        var list = new PagedListAsync <T>();
        await list.InitAsync(superset, pageNumber, pageSize);

        return(list);
    }
 public static async Task <IPagedList <T> > ToPagedListAsync <T>(this IQueryable <T> superset, Int32 pageNumber, Int32 pageSize)
 {
     return(await PagedListAsync <T> .Create(superset, pageNumber, pageSize));
 }