def isPresent( self, element ):

        log.debug("Looking for existing element in size-%d lookup table." %
                  len(self.table))

        # Prune the replay table before looking up the given `element'.  This
        # could be done more efficiently, e.g. by pruning every n minutes and
        # only checking the timestamp of this particular element.
        self.prune()

        return (element in self.table)
verify that only one (unique) flavor is returned from
dataset/ETHPy150Open isislovecruft/obfsproxy/obfsproxy/transports/scramblesuit/replay.py/Tracker.isPresent--crossover with--dataset/ETHPy150Open sassoftware/conary/conary_test/localtest/sqldbtest.py/SqlDB.testMultipleFlavorsInstalled