code: public Query geoCode(GeoLocation location, double radius
              , Unit unit) {
          setGeoCode(location, radius, unit);
          return this;
      }
docs: returns tweets by users located within a given radius of the given latitude/longitude, where the user's location is taken from their Twitter profile
  
  @param location geo location
  @param radius   radius
  @param unit     Query.MILES or Query.KILOMETERS
  @return the instance
  @since Twitter4J 4.0.7