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: scrap_with_css_selectors.rs
    path of file: ./repos/Rust-Full-Stack/web_scraper/src
    
    the code of the file until where you have to start completion: // Using CSS selectors with s
    
fn hn_headlines(url: &str) {

   let mut resp = reqwest::get(url).unwrap();
   assert!(resp.status().is_success());

   let body = resp.text().unwrap();
   // parses string of HTML as a document
   let fragment = Html::parse_document(&body);
   // parses based on a CSS selector
   let stories = Selector::parse(".storylink").unwrap();

   // iterate over elements matching our selector
   for story in fragment.select(&stories) {
        // grab the headline text and place into a vector
        let story_txt = story.text().collect::<Vec<_>>();
        println!("{:?}", story_txt);
    }
}