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: find_unique.rs
    path of file: ./repos/prisma-client-rust/integration-tests/tests
    
    the code of the file until where you have to start completion: use crate::{db::*, utils::*};

#[tokio::test]
async fn primary_key() -> TestResult {
    let client = client().await;

    let post = client
        .post()
        .create("My post title!".to_string(), false, vec![])
        .exec()
        .await?;

    let found = client
        .post()
        .find_unique(post::id::equals(post.id.clone()))
        .exec()
        .await?;
    assert_eq!(found.unwrap().id, post.id);

    cleanup(client).await
}

#[tokio::test]
async fn unique_field() -> TestResult {
    let client = client().await;

    let u
    
async fn unique_field() -> TestResult {
    let client = client().await;

    let user = client
        .user()
        .create(
            "Brendan".to_string(),
            vec![user::email::set(Some(
                "brendonovich@outlook.com".to_string(),
            ))],
        )
        .exec()
        .await?;

    let found = client
        .user()
        .find_unique(user::email::equals("brendonovich@outlook.com".to_string()))
        .exec()
        .await?
        .unwrap();
    assert_eq!(found.id, user.id);

    let found = client
        .user()
        .find_unique(user::email::equals("unknown".to_string()))
        .exec()
        .await?;
    assert!(found.is_none());

    cleanup(client).await
}