dataStoreParams.put("key4", "value4");
        assertTrue(dataStoreParams.containsKey("key4"));
        assertFalse(newParams.containsKey("key4"));
    }

    // Test asMap
    public void test_asMap() {
        dataStoreParams.put("key1", "value1");
        dataStoreParams.put("key2", 123);
        dataStoreParams.put("key3", null);

        Map<String, Object> map = dataStoreParams.asMap();