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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def doInteractions(self, number=1):
 """ Directly maps the agents and the tasks. """

        t0 = time.time()

        for _ in range(number):
            self._oneInteraction()

        elapsed = time.time() - t0
        logger.info("%d interactions executed in %.3fs." % (number, elapsed))

        return self.stepid