code: def set_sparsemem(self, sparsemem):
          
  
          if sparsemem:
              flag = 1
          else:
              flag = 0
          yield from self._hypervisor.send('vm set_sparse_mem "{name}" {sparsemem}'.format(name=self._name, sparsemem=flag))
  
          if sparsemem:
              log.info('Router "{name}" [{id}]: sparse memory enabled'.format(name=self._name, id=self._id))
          else:
              log.info('Router "{name}" [{id}]: sparse memory disabled'.format(name=self._name, id=self._id))
          self._sparsemem = sparsemem
docs: Enable/disable use of sparse memory
  
          :param sparsemem: activate/deactivate sparsemem (boolean)