code: def start(self):
          
          if not global_sdk_config.sdk_enabled():
              return
  
          with self._lock:
              if not self._started:
                  self._rule_poller.start()
                  self._target_poller.start()
                  self._started = True
docs: Start rule poller and target poller once X-Ray daemon address
          and context manager is in place.