import type { StyleXPluginOption } from '@stylexswc/rspack-plugin';
import type { NextConfig } from 'next/dist/server/config-shared';
export interface StyleXNextRspackPluginOption extends StyleXPluginOption {
    /**
     * Whether the server compilers keep Rspack's persistent cache.
     *
     * Next.js 16 turns on `experiments.cache = { type: 'persistent' }` for
     * every `next-rspack` compiler. With a `proxy.ts`/`middleware.ts` entry
     * that cache degrades catastrophically in the server compilers: the build
     * spends its time in Rspack's native filesystem layer walking the whole
     * workspace, and warm builds are slower than cold ones (measured on the
     * example app: 1.6s -> 27s cold, 50s warm; unbounded in large monorepos).
     *
     * Left unset, the cache is disabled for the server compilers of a
     * **production build** when a proxy/middleware entry is detected. `next dev`
     * is left alone: it shows no such stall, and keeping its cache is worth
     * ~200ms on the first compile of a route. Set `true` to keep Next.js'
     * setting untouched, `false` to always disable it (dev included).
     *
     * Auto-detection also stands down when your own `webpack()` hook configures
     * `experiments.cache` itself, so an explicit choice there always wins.
     *
     * @default undefined (auto-detect, production builds only)
     */
    rspackServerPersistentCache?: boolean;
}
declare const withStyleX: (pluginOptions?: StyleXNextRspackPluginOption) => (nextConfig?: NextConfig) => NextConfig;
export default withStyleX;
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