code: public boolean setFeatureStyle(PolylineOptions polylineOptions, FeatureStyle featureStyle) {
          return StyleUtils.setFeatureStyle(polylineOptions, featureStyle, density);
      }
docs: Set the feature style into the polyline options
  
  @param polylineOptions polyline options
  @param featureStyle    feature style
  @return true if style was set into the polyline options