import type { PendingDecision } from '../hitl/index.js';
import type { TurnExecutionStatus, TurnStatus } from './turn.js';
/**
 * Project what the SDK records about a turn onto the session-layer
 * {@link TurnStatus}.
 *
 * `Turn.status` is a {@link TurnExecutionStatus} — six values, none of which can
 * say "a human owes this turn an answer". `TurnStatus` has the vocabulary for
 * that and is consumed by session-status derivation and by handoff gating,
 * but nothing in the repo ever produced it: a host implementing a resolver
 * had to invent the projection, and the two `awaiting_hitl*` variants in
 * particular had no producer at all. `awaiting_hitl_resolution` documented
 * a "persisted wait after a HITL timeout" for a timeout nothing could
 * raise.
 *
 * The park record is the missing input. It is durable, it is what an
 * approval queue already reads, and it carries the deadline that separates
 * "waiting" from "waited too long".
 */
export declare function deriveTurnStatus(input: {
    /** What the turn itself recorded. */
    readonly status: TurnExecutionStatus;
    /** The turn's outstanding park, if it has one. */
    readonly park?: PendingDecision;
    /** Injectable for tests; defaults to now. */
    readonly now?: number;
}): TurnStatus;
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