import core::http;
fn start_main() -> i64 {
    var settings = http::runtime_config();
    settings::outbound_connections = 1;
    let invalid = http::configure(settings);
    if invalid::ok or invalid::error::code not matches "http.invalid_argument" { return 1; }
    settings::idle_client_connections = 1;
    if not http::configure(settings)::ok { return 2; }
    return 0;
}