import { MisinaError } from "./base.mjs";
/**
* Thrown when the request fails before a usable response is produced —
* DNS lookup failure, TCP refuse, TLS handshake error, or a stream cut
* mid-body after headers arrived. The original cause (e.g. `TypeError:
* fetch failed`) is preserved on `.cause`; `.response` is populated only
* for the mid-stream case.
*
* @example
* ```ts
* import { isNetworkError } from "misina"
*
* try { await api.get("/users") } catch (err) {
*   if (isNetworkError(err)) {
*     console.warn("upstream unreachable:", err.message)
*     showOfflineBanner()
*   } else throw err
* }
* ```
*/
export declare class NetworkError extends MisinaError {
	override readonly name = "NetworkError";
	/**
	* Response object when the network failure happened mid-stream after
	* headers had already arrived. `undefined` for pre-connection failures
	* (DNS, TCP refuse, TLS) where no response was ever produced.
	*/
	readonly response: Response | undefined;
	constructor(message: string, options?: {
		cause?: unknown;
		response?: Response;
	});
}
export declare function isRawNetworkError(error: unknown): boolean;