def __init__(self, chainPath, level = 2, wb = False):
		self.level = level
		self.chain = shelve.open(chainPath, protocol = 2, 
					 writeback = wb)
Flush all metrics up to the given timestamp.
dataset/ETHPy150Open capnrefsmmat/seuss/Markov.py/MarkovChain.__init__--crossover with--dataset/ETHPy150Open DataDog/datadogpy/datadog/threadstats/metrics.py/MetricsAggregator.flush