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: tests.rs
    path of file: ./repos/linkerd2/policy-controller/k8s/index/src/inbound
    
    the code of the file until where you have to start completion: mod annotation;
mod authorization_policy;
mod http_routes;
mod server_a
    
fn pod_must_exist_for_lookup() {
    let test = TestConfig::default();
    test.index
        .write()
        .pod_server_rx("ns-0", "pod-0", 8080.try_into().unwrap())
        .expect_err("pod-0.ns-0 must not exist");
}