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: funcaptcha.rs
    path of file: ./repos/ninja/examples
    
    the code of the file until where you have to start completion: use openai::arkose;
use openai::arkose::funcaptcha::solver::ArkoseSolver;
use openai::arkose::funcaptcha::solver::Solver;
use openai::arkose::ArkoseContext;
use openai::arkose::ArkoseToken;
use openai::context::args::Args;
use openai::{
    context::{self},
    with_context,
};
use std::str::FromStr;
use tokio::time::Instant;

#[tokio::main]
async fn main() -> anyhow::Result<()> {
    env_logger::init();
    let client_key = std::env::var("KEY").expect("Need solver client key");
    let solver = Solver::from_str(&std::env::var("SOLVER").expect("Need solver"))
        .expect("Not support solver");
    let solver_type = std::env::var("SOLVER_TYPE").expect("Need solver type");

    context::init(
        Args::builder()
            .arkose_solver_tguess_endpoint(Some("https://example.com/tguess".to_owned()))
            .arkose_solver(ArkoseSolver::new(solver, client_key, None, 1))
            .build(),
    );

    let typed = match solver_t
    
async fn main() -> anyhow::Result<()> {
    env_logger::init();
    let client_key = std::env::var("KEY").expect("Need solver client key");
    let solver = Solver::from_str(&std::env::var("SOLVER").expect("Need solver"))
        .expect("Not support solver");
    let solver_type = std::env::var("SOLVER_TYPE").expect("Need solver type");

    context::init(
        Args::builder()
            .arkose_solver_tguess_endpoint(Some("https://example.com/tguess".to_owned()))
            .arkose_solver(ArkoseSolver::new(solver, client_key, None, 1))
            .build(),
    );

    let typed = match solver_type.as_str() {
        "auth" => arkose::Type::Auth,
        "platform" => arkose::Type::Platform,
        "signup" => arkose::Type::SignUp,
        "gpt3" => arkose::Type::GPT3,
        "gpt4" => arkose::Type::GPT4,
        _ => anyhow::bail!("Not support solver type: {solver_type}"),
    };

    // start time
    let now = Instant::now();

    let arkose_token = ArkoseToken::new_from_context(
        ArkoseContext::builder()
            .client(with_context!(arkose_client))
            .typed(typed)
            .build(),
    )
    .await?;

    println!("Arkose token: {}", arkose_token.json());

    println!("Function execution time: {:?}", now.elapsed());
    Ok(())
}