docs: public Predicate<Measurement> getDefaultMeasurementFilter() throws IOException {
      if (defaultMeasurementFilter != null) {
        return defaultMeasurementFilter;
      }
  
      if (!prototypeFilterPath.isEmpty()) {
        defaultMeasurementFilter = PrototypeMeasurementFilter.loadFromPath(
            prototypeFilterPath);
      } else {
        defaultMeasurementFilter = ALL_MEASUREMENTS_FILTER;
      }
  
      return defaultMeasurementFilter;
    }