assertNull(dataStoreParams.get("nonexistent"));
    }

    // Test getAsString with String value
    public void test_getAsStringWithStringValue() {
        dataStoreParams.put("stringKey", "stringValue");
        assertEquals("stringValue", dataStoreParams.getAsString("stringKey"));
    }

    // Test getAsString with non-String value
    public void test_getAsStringWithNonStringValue() {
        dataStoreParams.put("intKey", 123);