code: public void last(String name, float value) {
  		Counter counter = get(name, CounterType.LastValue);
  		counter.setLast(value);
  		update();
  	}
docs: Records the last calculated measurement value.
  
  Usually this method is used by metrics calculated externally.
  
  @param name  a counter name of Last type.
  @param value a last value to record.