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: hello_world.rs
    path of file: ./repos/visual-assembly-canvas/machine/tests
    
    the code of the file until where you have to start completion: #[cfg(test)]
mod tests {
    use machine::{compile_to_binary, load_from_binary, load_test_file, load
    
    fn expect_hello_world(m: &mut Machine) {
        m.run().expect("cannot run the test program");

        assert_eq!(m.events, [
            Print { text: "Hello, world!".into() },
            Print { text: "Sunshine!".into() },
        ]);

        assert_eq!(m.mem.read_stack(1), [0], "stack should be empty");
    }