docs: private AlbumArt findArtInMemoryCaches(DataReference artReference) {
          // First see if we can find the new track in the hot cache as a hot cue
          for (AlbumArt cached : hotCache.values()) {
              if (cached.artReference.equals(artReference)) {  // Found a hot cue hit, use it.
                  return cached;
              }
          }
  
          // Not in the hot cache, see if it is in our LRU cache
          return artCache.get(artReference);
      }