def submit_metric(self, name, value, mtype, tags=None, hostname=None,
                      device_name=None, timestamp=None, sample_rate=1):
        raise NotImplementedError()
Count a node that has booted.
dataset/ETHPy150Open serverdensity/sd-agent/aggregator.py/Aggregator.submit_metric--crossover with--dataset/ETHPy150Open coreemu/core/daemon/core/broker.py/CoreBroker.incrbootcount