write(projectRoot: string,cache: FailureCachePayload): Promise<void>
Writes the failure cache. Best-effort; callers fire-and-forget like Timings.persist.
import * as FailureCache from './failure-cache.ts'; // Defined, not invoked: writes tmp/.qunitx-last-failures.json to disk. async function persist(projectRoot: string, payload: FailureCache.FailureCachePayload) { await FailureCache.write(projectRoot, payload); }
cache: FailureCachePayload