public void enterTerminalState() {
        healthService.enterTerminalState();
    }
@Test
    void enterTerminalState() {
        String service = "serv2";
        manager.setStatus(service, ServingStatus.SERVING);
        ServingStatus stored = manager.getHealthService()
                .check(HealthCheckRequest.newBuilder().setService(service).build())
                .getStatus();
        Assertions.assertEquals(ServingStatus.SERVING, stored);
        manager.enterTerminalState();
        ServingStatus stored2 = manager.getHealthService()
                .check(HealthCheckRequest.newBuilder().setService(service).build())
                .getStatus();
        Assertions.assertEquals(ServingStatus.NOT_SERVING, stored2);
    }