/**
 * synap statusline — full 3-line ANSI status for the Claude Code statusLine.
 *
 * Two modes, both via `synap statusline`:
 *
 *   RENDER (default)   Parse the Claude Code JSON from stdin, read the pod
 *                      cache file (NO network), compose 3 ANSI lines, print,
 *                      exit. Always instant. If the cache is stale it spawns a
 *                      detached refresh (fire-and-forget) so the NEXT render is
 *                      fresh — this render never blocks on the network.
 *
 *   REFRESH (--refresh) Fetch pod data in a single parallel burst and write the
 *                      cache. Lock-guarded so only one refresh runs at a time.
 *                      On error/429, the last good cache is preserved (the dot
 *                      goes stale, not blank).
 *
 * Why: Claude Code calls the statusline on every render (debounced ~300ms +
 * periodic refresh). Fetching live pod data synchronously per render hammers
 * the pod's 100-req/min budget → 429 → red dot. Decoupling render from fetch
 * caps pod traffic at ~1 burst / REFRESH_TTL regardless of render frequency.
 */
export declare function statusline(opts?: {
    refresh?: boolean;
}): Promise<void>;