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: leak_funcall.rs
    path of file: ./repos/ferrocarril/mruby/tests
    
    the code of the file until where you have to start completion: #![deny(clippy::all, clippy::pedantic)]
#![deny(warnings, intra_doc_link_resolution_failure)]

//! This integration test checks for memory leak
    
fn funcall_arena() {
    let interp = mruby::interpreter().expect("mrb init");
    let s = Value::from_mrb(&interp, "a".repeat(1024 * 1024));

    leak::Detector::new("ValueLike::funcall", ITERATIONS, LEAK_TOLERANCE).check_leaks(|_| {
        let expected = format!(r#""{}""#, "a".repeat(1024 * 1024));
        // we have to call a function that calls into the Ruby VM, so we can't
        // just use `to_s`.
        let inspect = s.funcall::<String, _, _>("inspect", &[]);
        assert_eq!(inspect, Ok(expected));
        interp.incremental_gc();
    });
}