_compile() {
        // Bind the not found handler as a catchall route if the user did not already bind a global ANY catchall route
        if (this.#handlers.on_not_found) {
            const exists = this.#routes.any['/*'] !== undefined;
            if (!exists) this.any('/*', (request, response) => this.#handlers.on_not_found(request, response));
        }

        // Iterate through all routes
        Object.keys(this.#routes).forEach((method) =>
            Object.keys(this.#routes[method]).forEach((pattern) => this.#routes[method][pattern].compile())
        );

        // Lock routes from further creation
        this.#routes_locked = true;
    }
Compiles the route and middleware structures for this instance for use in the uWS server.
Note! This method will lock any future creation of routes or middlewares.
@private