import type { RunnerSelfSeat } from "../core/runner/contracts.js";
/**
 * Release a throwaway session, swallowing errors — best-effort cleanup for the verifier/cascade-rung
 * sessions that agents spin up and discard. Always call this in a `finally` so a throwing `runTask`
 * result handler or caller hook (`onRung`/`onRound`) can't leak the session.
 */
export declare function releaseSession(runner: RunnerSelfSeat, sessionId: string): Promise<void>;