You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: object_swap_test.rs
    path of file: ./repos/gdext/itest/rust/src/object_tests
    
    the code of the file until where you have to start completion: /*
 * Copyright (c) godot-rust; Bromeon and contributors.
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain on
    
fn object_subtype_swap_clone() {
    let mut obj: Gd<Object> = Object::new_alloc();
    let mut node: Gd<Node> = Node::new_alloc();

    std::mem::swap(&mut *obj, &mut *node);

    expect_panic("clone badly typed Gd<T>", || {
        let _ = node.clone();
    });

    swapped_free!(obj, node);
}