import type { Plugin } from 'vite';
import type { OptionsContext } from './context.js';
/**
 * HMR plugin: wrapper/install virtual modules, the Lit import rewrite and the
 * indicator/timeline runtime scripts. Always registered; the hooks that
 * change anything gate on the context's resolved options, so a feature that
 * is off adds no module, script or optimizeDeps entry.
 */
export declare const litHmr: (ctx: OptionsContext) => Plugin;
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