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: mod_elements.rs
    path of file: ./repos/phaser/phaser/vendor/web-sys/tests/wasm
    
    the code of the file until where you have to start completion: use wasm_bindgen::prelude::*;
use wasm_bindgen_test::*;
use web_sys::HtmlModElement;

#[wasm_bindgen(module = "/tests/wasm/element.js")]
extern "C" {
    fn new_del() -> HtmlModElement;
    fn new_ins() -> HtmlModElement;
}

#[wasm_bindgen_test]
fn test_mod_elements() {
    let del = new_del();

    del.set_cite("https://www.rust-lang.org/en-US/");
    assert_eq!(
        del.cite(),
        "https://www.rust-lang.org/en-US/",
        "Option should have the cite URI we gave it."
    );

    del.set_date_time("Thu Aug 02 2018 18:02:56 GMT-0500 (Central Daylight Time)");
    assert_eq!(
        del.date_time(),
        "Thu Aug 02 2018 18:02:56 GMT-0500 (Central Daylight Time)",
        "Option should have the date_t
    
fn test_mod_elements() {
    let del = new_del();

    del.set_cite("https://www.rust-lang.org/en-US/");
    assert_eq!(
        del.cite(),
        "https://www.rust-lang.org/en-US/",
        "Option should have the cite URI we gave it."
    );

    del.set_date_time("Thu Aug 02 2018 18:02:56 GMT-0500 (Central Daylight Time)");
    assert_eq!(
        del.date_time(),
        "Thu Aug 02 2018 18:02:56 GMT-0500 (Central Daylight Time)",
        "Option should have the date_time we gave it."
    );

    let ins = new_ins();

    ins.set_cite("https://www.rust-lang.org/en-US/");
    assert_eq!(
        ins.cite(),
        "https://www.rust-lang.org/en-US/",
        "Option should have the cite URI we gave it."
    );

    ins.set_date_time("Thu Aug 02 2018 18:02:56 GMT-0500 (Central Daylight Time)");
    assert_eq!(
        ins.date_time(),
        "Thu Aug 02 2018 18:02:56 GMT-0500 (Central Daylight Time)",
        "Option should have the date_time we gave it."
    );
}