public String getNamespaceId() {
        return namespaceId;
    }
@Test
    void testGetNamespaceId() {
        String namespaceId = "aaa";
        final NacosClientProperties nacosClientProperties = NacosClientProperties.PROTOTYPE.derive(props);
        NamingHttpClientProxy clientProxy = new NamingHttpClientProxy(namespaceId, proxy, mgr, nacosClientProperties);
        String actualNamespaceId = clientProxy.getNamespaceId();
        assertEquals(namespaceId, actualNamespaceId);
    }