code: public static Coverage coverBoundingBox(double topLeftLat, final double topLeftLon,
              final double bottomRightLat, final double bottomRightLon) {
  
          return coverBoundingBoxMaxHashes(topLeftLat, topLeftLon, bottomRightLat, bottomRightLon,
                  DEFAULT_MAX_HASHES);
      }
docs: Returns the result of coverBoundingBoxMaxHashes with a maxHashes value of
  {@link GeoHash}.DEFAULT_MAX_HASHES.
  
  @param topLeftLat
  latitude of top left point (north west)
  @param topLeftLon
  longitude of top left point (north west)
  @param bottomRightLat
  latitude of bottom right point (south east)
  @param bottomRightLon
  longitude of bottom right point (south east)
  @return coverage