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: mod.rs
    path of file: ./repos/readyset/readyset-server/src/controller
    
    the code of the file until where you have to start completion: use std::collections::HashMap;
use std::fmt::{Debug, Formatter};
use std::future;
use std::sync::atomic::{AtomicBool, Ordering};
use std::sync::Arc;
use std::time::{Duration, Instant, SystemTime, UNIX_EPOCH};

use anyhow::{format_err, Context};
use dataflow::node::{self, Column};
use dataflow::prelude::ChannelCoordinator;
use failpoint_macros::set_failpoint;
use futures::future::Either;
use hyper::http::{Method, StatusCode};
use metrics::{counter, gauge, histogram};
use no
    
    async fn remove_query() {
        let (mut noria, shutdown_tx) = start_simple("remove_query").await;
        noria
            .extend_recipe(
                ChangeList::from_str(
                    "CREATE TABLE users (id INT PRIMARY KEY, name TEXT);
                 CREATE CACHE test_query FROM SELECT * FROM users;",
                    DataDialect::DEFAULT_MYSQL,
                )
                .unwrap(),
            )
            .await
            .unwrap();

        let queries = noria.views().await.unwrap();
        assert!(queries.contains_key(&"test_query".into()));

        noria.remove_query(&"test_query".into()).await.unwrap();

        let queries = noria.views().await.unwrap();
        assert!(!queries.contains_key(&"test_query".into()));

        shutdown_tx.shutdown().await;
    }