use axum::response::AppendHeaders; #[axum::debug_handler] async fn handler() -> ( axum::http::StatusCode, AppendHeaders<[(axum::http::HeaderName, &'static str); 1]>, AppendHeaders<[(axum::http::HeaderName, &'static str); 1]>, AppendHeaders<[(axum::http::HeaderName, &'static str); 1]>, AppendHeaders<[(axum::http::HeaderName, &'static str); 1]>, AppendHeaders<[(axum::http::HeaderName, &'static str); 1]>, AppendHeaders<[(axum::http::HeaderName, &'static str); 1]>, AppendHeaders<[(axum::http::HeaderName, &'static str); 1]>, AppendHeaders<[(axum::http::HeaderName, &'static str); 1]>, AppendHeaders<[(axum::http::HeaderName, &'static str); 1]>, AppendHeaders<[(axum::http::HeaderName, &'static str); 1]>, AppendHeaders<[(axum::http::HeaderName, &'static str); 1]>, AppendHeaders<[(axum::http::HeaderName, &'static str); 1]>, AppendHeaders<[(axum::http::HeaderName, &'static str); 1]>, AppendHeaders<[(axum::http::HeaderName, &'static str); 1]>, AppendHeaders<[(axum::http::HeaderName, &'static str); 1]>, AppendHeaders<[(axum::http::HeaderName, &'static str); 1]>, AppendHeaders<[(axum::http::HeaderName, &'static str); 1]>, axum::http::StatusCode, ) { panic!() } fn main() {}