protected override async Task ExecuteAsync(CancellationToken cancellationToken)
        {
            var withGarden = (await _sourceReader.GetGardenHouses(cancellationToken)).ToList();
            var allHouses  = (await _sourceReader.GetHouses(cancellationToken)).ToList();

            _houseRepository.AddHouses(
                withGarden.Concat(allHouses)
                );
        }