code: def failover_to_replicant(self, volume_id, replicant_id, immediate=False):
          
  
          return self.client.call('Network_Storage', 'failoverToReplicant',
                                  replicant_id, immediate, id=volume_id)
docs: Failover to a volume replicant.
  
          :param integer volume_id: The id of the volume
          :param integer replicant_id: ID of replicant to failover to
          :param boolean immediate: Flag indicating if failover is immediate
          :return: Returns whether failover was successful or not