>>>
class ObjectBenchmark extends ObservationBenchmarkBase {
  ObjectBenchmark(int objectCount, int mutationCount, String config) : super(
          'ObjectBenchmark:$objectCount:$mutationCount:$config', objectCount,
          mutationCount, config);
}
<<<
class ObjectBenchmark extends ObservationBenchmarkBase {
  ObjectBenchmark(int objectCount, int mutationCount, String config)
      : super('ObjectBenchmark:$objectCount:$mutationCount:$config',
            objectCount, mutationCount, config);
}