import type { StartOptions } from '../../types.ts';
import type { EngineInternals } from '../internals.ts';
import { type LifecycleCallbacks } from './shared.ts';
/**
 * Resolve a start's effective delayed-start timestamp from
 * `options.startAt`/`options.startAfter`, or `undefined` for an immediate
 * start. Split out of `start.ts` to keep that file under the repository's
 * line-count ceiling; this is a pure resolution step with no dependency on
 * `startWorkflow`'s own reservation/commit state.
 */
export declare function resolveScheduledStartAt(internals: EngineInternals, options: StartOptions | undefined, submissionTime: number, callbacks: LifecycleCallbacks): number | undefined;