/**
 * Whether we gave up on the call: an `AbortSignal.timeout()` of ours elapsed,
 * which rejects with a `DOMException` named `TimeoutError` (per the DOM spec).
 *
 * @note Connect wraps that exception in a `ConnectError`, so it is only
 * reachable through `cause`.
 */
export declare function isAbortError(err: unknown): boolean;
/**
 * Whether the dataplane gave up on the call, reported as the gRPC
 * `DeadlineExceeded` status.
 */
export declare function isTimeoutError(err: unknown): boolean;
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