def _needs_ping(self, nid, t):
        ret = self.last_sent.get(nid, BIG_BANG_T) <= t - 3.0 / self.heartbeat_interval
        if ret:
            self.last_sent[nid] = t
        return ret
dataset/ETHPy150Open eallik/spinoff/spinoff/remoting/hublogic.py/HubLogic._needs_ping/swapped operands of `/`