def add_metric(self, labels, value):
        self.samples.append((self.name, dict(zip(self._labelnames, labels)), value))
Receive COM events from 'source'.  Events will call methods on
dataset/ETHPy150Open prometheus/client_python/prometheus_client/core.py/GaugeMetricFamily.add_metric--crossover with--dataset/ETHPy150Open enthought/comtypes/comtypes/client/_events.py/GetEvents