code: public JRecordExtractor<T, FloatNamedSparseArray>
    extractWithSettingsFloatNamedSparseArray(String settings) {
      return new JRecordExtractor<>(JavaOps.extractWithSettingsFloatNamedSparseArray(self, settings));
    }
docs: Java wrapper for {@link FeatureSpec#extractWithSettings(String, FeatureBuilder, ClassTag)}.