Code difference in blog and repository

[cseas]

Code for ReservationRepository.cs is different.

In the blog:

public async Task<List<T>> GetAll<T>()
{
    return await _myHotelDbContext
        .Reservations
        .Include(x => x.Room)
        .Include(x => x.Guest)
        .ProjectTo<T>()
        .ToListAsync();
}

In the repository:

public async Task<List<T>> GetAll<T>()
{
    return await GetQuery().ProjectTo<T>().ToListAsync();
}

Which one to use? Is the blog outdated or the repo?