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: basic.rs
    path of file: ./repos/rivet/svc/api/admin/tests
    
    the code of the file until where you have to start completion: use std::sync::Once;

use rivet_operation::prelude::*;

static GLOBAL_INIT: Once = Once::new();

const TOKEN: &str = "ZfGFOIALpu3vj1r2qO";

struct Ctx {
	op_ctx: OperationContext<()>,
}

impl Ctx {
	async fn init() -> Ctx {
		GLOBAL_INIT.call_once(|| {
			tracing_subscriber::fmt()
				.pretty()
				.with_max_level(tracing::Level::INFO)
				.with_target(false)
				.init();
		});

		let pools = rivet_pools::from_env("api-admin-test").await.unwrap();
		let cache = rivet_cache::CacheInner::new(
			"api-admin-test".to_string(),
			std::env::var("RIVET_SOURCE_HASH").unwrap(),
			pools.redis_cache().unwrap(),
		);
		let client = chirp_client::SharedClient::from_env(pools.clone())
			.expect("create client")
			.wrap_new("api-admin
    
	async fn init() -> Ctx {
		GLOBAL_INIT.call_once(|| {
			tracing_subscriber::fmt()
				.pretty()
				.with_max_level(tracing::Level::INFO)
				.with_target(false)
				.init();
		});

		let pools = rivet_pools::from_env("api-admin-test").await.unwrap();
		let cache = rivet_cache::CacheInner::new(
			"api-admin-test".to_string(),
			std::env::var("RIVET_SOURCE_HASH").unwrap(),
			pools.redis_cache().unwrap(),
		);
		let client = chirp_client::SharedClient::from_env(pools.clone())
			.expect("create client")
			.wrap_new("api-admin-test");
		let conn = rivet_connection::Connection::new(client, pools, cache);
		let op_ctx = OperationContext::new(
			"api-admin-test".to_string(),
			std::time::Duration::from_secs(60),
			conn,
			Uuid::new_v4(),
			Uuid::new_v4(),
			util::timestamp::now(),
			util::timestamp::now(),
			(),
			Vec::new(),
		);

		Ctx { op_ctx }
	}