def set_lock(self, d):
        self.describing_ring = d
convert seconds to nanoseconds. If s is None, current time is
dataset/ETHPy150Open driftx/Telephus/telephus/pool.py/CassandraClusterPool.set_lock--crossover with--dataset/ETHPy150Open benoitc/gaffer/gaffer/util.py/nanotime