/**
 * Shared typed-fault mapping for {@link WorkflowRevisionUnavailableError}
 * (WFT-21) — extracted out of `schedule-faults.ts` so `fork-workflow.ts`
 * can reuse it instead of duplicating an equivalent check inline, which
 * would trip the repository's jscpd duplicate-code audit on two
 * near-identical fault-mapping functions.
 *
 * @module server/operations/revision-unavailable-fault
 */
import type { OperationFault } from '../operation-fault.ts';
/**
 * A commit lost its revision-availability fence (an explicit revision was
 * concurrently removed, or — for an eager type — does not exactly match
 * what this process has registered). A structured, typed check rather than
 * substring matching, since the message text varies by
 * `WorkflowRevisionUnavailableError.reason`. `undefined` when `error` is
 * not this error class, so the caller falls through to its own
 * message-based classification.
 */
export declare function mapRevisionUnavailableToFault(error: unknown): OperationFault | undefined;