code: private void createCountersManager() {
          UnsafeBuffer counterLabelsBuffer = monitorFileWriter.createServiceCounterLabelsBuffer(index);
          UnsafeBuffer counterValuesBuffer = monitorFileWriter.createServiceCounterValuesBuffer(index);
  
          countersManager = new CountersManager(counterLabelsBuffer, counterValuesBuffer);
      }
docs: Helper method instantiating a counters manager