code: public Query aroundLatitudeLongitude(float latitude, float longitude, int radius) {
      aroundLatLong = "aroundLatLng=" + latitude + "," + longitude;
      aroundRadius = radius;
      return this;
    }
docs: Search for entries around a given latitude/longitude.
  
  @param radius set the maximum distance in meters. Note: at indexing, geoloc
  of an object should be set with _geoloc attribute containing
  lat and lng attributes (for example
  {"_geoloc":{"lat":48.853409, "lng":2.348800}})