import type { Plugin } from 'vite';
/**
 * The public timeline API virtual module, served in dev and build alike:
 * app code importing it must keep building under `vite build`, where the HMR
 * plugin doesn't apply. While these hooks lived on that serve-only plugin,
 * nothing claimed the specifier during a build and the bundler failed to
 * resolve it.
 *
 * `getTimeline` is a getter, not a value: `litPlugin()` re-resolves its
 * options against the loaded env in a `config` hook, which runs after the
 * plugin array is built.
 */
export declare const litTimelineVirtual: (getTimeline?: () => boolean) => Plugin;
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