/**
 * Returns a JSON.stringify replacer for outgoing log payloads: it skips
 * circular references and serializes Error instances, whose own fields are not
 * enumerable and would otherwise be sent as `{}`.
 *
 * Errors are shaped like CustomError.toJSON (`error` holds the message) so a
 * plain Error and a DynamicError land on the same log attributes.
 */
export declare const createLogPayloadReplacer: () => (this: Record<string, unknown>, key: string, value: unknown) => unknown;