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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 cpus(self, cpus):
 """ Sets the number of vCPUs this QEMU VM. :param cpus: number of vCPUs. """


        log.info('QEMU VM "{name}" [{id}] has set the number of vCPUs to {cpus}'.format(name=self._name, id=self._id, cpus=cpus))
        self._cpus = cpus