void testGetResults() {
        // Test the getResults method
        // By default, it should return null until results are set
        assertNull(response.getResults());
    }

    @Test
    void testGetLastName() {
        // Test the getLastName method
        // By default, it should return null
        assertNull(response.getLastName());
    }

    @Test
    void testGetSubCommand() {