code: @Override
      public boolean hasTileToRetrieve(int x, int y, int zoom) {
  
          // Determine if the tile should be drawn
          boolean drawTile = true;
          for (GeoPackageOverlay geoPackageOverlay : linkedOverlays) {
              if (geoPackageOverlay.hasTile(x, y, zoom)) {
                  drawTile = false;
                  break;
              }
          }
  
          return drawTile;
      }
docs: {@inheritDoc}