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.

def last(self, name, value):
        """
        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.
        """
        for counter in self._counters:
            counter.last(name, value)