import { type DurableSessionState } from "#execution/durable-session-store.js";
export interface CancelledTurnSettleResult {
    readonly serializedContext: Record<string, unknown>;
    readonly sessionState: DurableSessionState;
}
/**
 * Settles one cancelled turn: emits `turn.cancelled` → `session.waiting`,
 * drops pending runtime-action state, and persists the between-turns
 * session. Runs in the *driver* run, whose wake sources exclude the
 * cancel hook, so a queued cancel wake cannot re-dispatch it.
 */
export declare function settleCancelledTurnStep(input: {
    readonly parentWritable: WritableStream<Uint8Array>;
    readonly serializedContext: Record<string, unknown>;
    readonly sessionState: DurableSessionState;
}): Promise<CancelledTurnSettleResult>;