func acquire(s server.TestServer, descID sqlbase.ID, version sqlbase.DescriptorVersion) (*csql.LeaseState, error) { var lease *csql.LeaseState err := s.DB().Txn(func(txn *client.Txn) error { var err error lease, err = s.LeaseManager().(*csql.LeaseManager).Acquire(txn, descID, version) return err }) return lease, err }