/**
 * Closes and re-creates the FS watcher. Deduped: callers that restart the
 * watcher around the same time (fullRebuild, reloadWatcher, watchdog) only
 * trigger a single re-creation.
 */
export declare function restartWatcher(): void;
/**
 * Called periodically by the dev server. Re-creates the watcher only when it
 * failed to report the probe written on the previous tick, i.e. when it went
 * stale. A healthy watcher is left alone: re-creating it rescans the whole
 * project tree.
 */
export declare function watcherWatchdogTick(): void;
export default function watcherEsbuildCTX(params?: {
    pages_snapshot?: string;
}): Promise<void>;