/**
 * Returns a safe, bounded string representation of an error for logging.
 * inspect() handles everything internally: circular references, throwing
 * getters, frozen objects, huge nested data. No manual field extraction needed.
 */
export declare function sanitizeError(error: unknown, maxLength?: number): string;
/**
 * Truncates unknown data to a safe size.
 * Use for FetchError.data assignment to prevent huge RPC payloads
 * from being attached to error objects.
 */
export declare function sanitizeErrorData(data: unknown, maxLength?: number): unknown;
/**
 * Mutates the error object in place, truncating heavy fields.
 * Preserves the original error type (instanceof checks still work).
 * Use for error objects that are thrown to consumers (e.g. AllProvidersFailedError.cause).
 */
export declare function sanitizeErrorInPlace(error: unknown, maxLength?: number, 
/** @internal tracks visited objects to prevent circular-reference stack overflow */
_seen?: WeakSet<object>): void;