case go122.EvUserTaskBegin:
		parentID = TaskID(e.base.args[1])
		typ = e.table.strings.mustGet(stringID(e.base.args[2]))
	case go122.EvUserTaskEnd:
		parentID = TaskID(e.base.extra(version.Go122)[0])
		typ = e.table.getExtraString(extraStringID(e.base.extra(version.Go122)[1]))
	default:
		panic(fmt.Sprintf("internal error: unexpected event type for Task kind: %s", go122.EventString(e.base.typ)))
	}
	return Task{