Function concurrent_get_foreach

pub async fn concurrent_get_foreach<I, S, F, R>(
    fetch_urls: I,
    concurrent: usize,
    run_for_each: F,
) -> Vec<Result<R, String>>
where
    S: AsRef<str>,
    I: IntoIterator<Item = S>,
    F: Copy + FnOnce(Response) -> R,
    R: Debug,