public PhotoService( IMemoryCache cache, CacheSignal <Photo> cacheSignal, ILogger <PhotoService> logger) => (_cache, _cacheSignal, _logger) = (cache, cacheSignal, logger);
public CacheWorker( ILogger <CacheWorker> logger, HttpClient httpClient, CacheSignal <Photo> cacheSignal, IMemoryCache cache) => (_logger, _httpClient, _cacheSignal, _cache) = (logger, httpClient, cacheSignal, cache);