code: def set_disk1(self, disk1):
          
  
          yield from self._hypervisor.send('vm set_disk1 "{name}" {disk1}'.format(name=self._name, disk1=disk1))
  
          log.info('Router "{name}" [{id}]: disk1 updated from {old_disk1}MB to {new_disk1}MB'.format(name=self._name,
                                                                                                      id=self._id,
                                                                                                      old_disk1=self._disk1,
                                                                                                      new_disk1=disk1))
          self._disk1 = disk1
docs: Sets the size (MB) for PCMCIA disk1.
  
          :param disk1: disk1 size (integer)