public B ondisconnect(String ondisconnect) {
        this.ondisconnect = ondisconnect;
        return getThis();
    }
@Test
    void ondisconnect() {
        InterfaceBuilder builder = new InterfaceBuilder();
        builder.ondisconnect("ondisconnect");

        Assertions.assertEquals("ondisconnect", builder.build().getOndisconnect());
    }