import { MessageProcessor, ProcessingPayload } from '@hawk.so/core';
/**
 * Appends `RAW_EVENT_DATA` to the event addons for debug purposes.
 */
export declare class DebugAddonMessageProcessor implements MessageProcessor<'errors/javascript'> {
    /**
     * Writes name, message, and stack from `snapshot.error` into `payload.addons.RAW_EVENT_DATA`.
     * Skips if snapshot error is missing or not Error instance.
     *
     * @param payload - event message payload to enrich
     * @param error - original error
     * @returns modified payload with RAW_EVENT_DATA set, or original payload unchanged
     */
    apply(payload: ProcessingPayload<'errors/javascript'>, error?: Error | string): ProcessingPayload<'errors/javascript'> | null;
}