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: e2e.rs
    path of file: ./repos/pomsky/pomsky-bin/tests
    
    the code of the file until where you have to start completion: // these tests don't work on Windows for some reason
#![cfg(not(target_os = "windows"))]

use assert_cmd::prelude::*;
use assert_fs::prelude::{FileWriteBi
    
fn arg_input_with_flavor() {
    let mut cmd = command(&[":foo('test')+", "-f", "js"]);
    cmd.assert().success().stdout("(?<foo>test)+\n").stderr("");

    let mut cmd = command(&[":foo('test')+", "-fjs"]);
    cmd.assert().success().stdout("(?<foo>test)+\n").stderr("");

    let mut cmd = command(&[":foo('test')+", "-f=js"]);
    cmd.assert().success().stdout("(?<foo>test)+\n").stderr("");

    let mut cmd = command(&[":foo('test')+", "--flavor=js"]);
    cmd.assert().success().stdout("(?<foo>test)+\n").stderr("");

    let mut cmd = command(&[":foo('test')+", "--flavor", "js"]);
    cmd.assert().success().stdout("(?<foo>test)+\n").stderr("");

    let mut cmd = command(&[":foo('test')+", "-f", "jS"]);
    cmd.assert().success().stdout("(?<foo>test)+\n").stderr("");
}