#[tokio::main] async fn main() -> Result<(), Box> { tracing::subscriber::set_global_default( tracing_subscriber::FmtSubscriber::builder() .with_env_filter(tracing_subscriber::EnvFilter::from_default_env()) .finish(), ) .unwrap(); let token_provider = gcp_auth::provider().await?; let _token = token_provider .token(&["https://www.googleapis.com/auth/cloud-platform"]) .await?; Ok(()) }