/**
 * Timeline Vue — `useTimelineVue` composable (ADR 0034 wedge 3).
 *
 * Import from `trellis/timeline/vue`:
 *
 *   const { state, actions } = useTimelineVue({ duration: 90 });
 *
 * State is a Vue `reactive` object mirrored from the core via the shared
 * `syncFromCore` bridge (same pattern as `trellis/forms/vue`).
 *
 * @module trellis/timeline/vue
 */
import type { TimelineConfig, UseTimelineReturn } from '../core/index.js';
/** Accept either a config (fresh core) or an existing core (shared mount). */
export type TimelineInput = TimelineConfig | UseTimelineReturn;
/**
 * Create a reactive Vue timeline. The core's state is mirrored into a
 * `reactive()` object on every mutation.
 */
export declare function useTimelineVue(input?: TimelineInput): UseTimelineReturn;
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