def _process_workers(self, state: State, timestamp):
for worker_name, worker_state in state.workers.items():
self._pusher.add(timestamp, worker_state.active,
['workers', 'by_name', worker_name, 'active'])
workers_alive = 0
for _ in state.alive_workers():
workers_alive += 1
logger.info(f'Adding metrics workers.alive {workers_alive}.')
self._pusher.add(timestamp, workers_alive, ['workers', 'alive'])
