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: query.rs
    path of file: ./repos/salvo/crates/oapi/src/extract/parameter
    
    the code of the file until where you have to start completion: use std::fmt::{self, Formatter};
use std::ops::{Deref, DerefMu
    
    async fn test_required_query_prarm_extract_with_value() {
        let req = TestClient::get("http://127.0.0.1:5801").build_hyper();
        let schema = req.uri().scheme().cloned().unwrap();
        let mut req = Request::from_hyper(req, schema);
        req.queries_mut().insert("param".to_string(), "param".to_string());
        let result = QueryParam::<String, true>::extract_with_arg(&mut req, "param").await;
        assert_eq!(result.unwrap().0.unwrap(), "param");
    }