public ApplicationBuilder qosAcceptForeignIp(Boolean qosAcceptForeignIp) {
        this.qosAcceptForeignIp = qosAcceptForeignIp;
        return getThis();
    }
@Test
    void qosAcceptForeignIp() {
        ApplicationBuilder builder = new ApplicationBuilder();
        builder.qosAcceptForeignIp(true);
        Assertions.assertTrue(builder.build().getQosAcceptForeignIp());
        builder.qosAcceptForeignIp(false);
        Assertions.assertFalse(builder.build().getQosAcceptForeignIp());
        builder.qosAcceptForeignIp(null);
        Assertions.assertNull(builder.build().getQosAcceptForeignIp());
    }