Class UpdateInstanceRequest (1.19.3)

The request for [UpdateInstance][google.spanner.admin.instance.v1.Inst anceAdmin.UpdateInstance].

Required. A mask specifying which fields in Instance][google.spanner.admin.instance.v1.Instance] should be updated. The field mask must always be specified; this prevents any future fields in Instance][google.spanner.admin.instance.v1.Instance] from being erased accidentally by clients that do not know about them.