/** Serialize an arbitrary thrown value for durable storage in a job's `error_payload`.
 *
 * A bare `{ message, stack }` capture is a diagnostics trap: wrapper errors hide the
 * root cause. Drizzle throws `DrizzleQueryError` whose `.message` is only the failed
 * SQL text; the real `PostgresError` — carrying `code`/`detail`/`constraint`/`table`
 * — lives on `.cause`. This walks the full `cause` chain and copies each error's
 * own-enumerable properties (where both Drizzle's `query` and Postgres' fields live),
 * so a dead-lettered job records *why* it failed, not just *which query* failed.
 *
 * Non-Error values pass through unchanged. Circular `cause` references are broken. */
export declare function serializeError(error: unknown): unknown;
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