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