/**
 * Check if Vue is installed
 */
export declare function hasVue(): boolean;
/**
 * Check if React is installed
 */
export declare function hasReact(): boolean;
/**
 * Check if React Compiler is installed
 */
export declare function hasReactCompiler(): boolean;
/**
 * Check if Svelte is installed
 */
export declare function hasSvelte(): boolean;
/**
 * Check if TypeScript is installed
 */
export declare function hasTypeScript(): boolean;
/**
 * Check if Prettier is installed
 */
export declare function hasPrettier(): boolean;
/**
 * Check if Vitest is installed
 */
export declare function hasVitest(): boolean;
/**
 * Check if Solid.js is installed
 */
export declare function hasSolid(): boolean;
/**
 * Check if Next.js is installed
 */
export declare function hasNextjs(): boolean;
/**
 * Check if Nuxt is installed
 */
export declare function hasNuxt(): boolean;
/**
 * Check if Astro is installed
 */
export declare function hasAstro(): boolean;
/**
 * Check if Angular is installed
 */
export declare function hasAngular(): boolean;
/**
 * Check if UnoCSS is installed
 */
export declare function hasUnoCSS(): boolean;
/**
 * Check if Remix is installed
 */
export declare function hasRemix(): boolean;
/**
 * Check if React Router is installed
 */
export declare function hasReactRouter(): boolean;
/**
 * Check if Vite is installed (for React Refresh allowConstantExport)
 */
export declare function hasVite(): boolean;
/**
 * Check if a package is installed
 */
export declare function hasPackage(name: string): boolean;
/**
 * Dynamically load a plugin.
 *
 * By default failures are silent (the plugin is treated as optional). Pass
 * `{ required: true }` for core dependencies whose failure should be surfaced
 * — otherwise a broken/incompatible install silently reduces the config to a
 * ruleset with no rules (e.g. a TypeScript config with no `ts/*` rules).
 *
 * @param options.required when true, warn with the plugin name and error on failure
 */
export declare function loadPlugin<T>(name: string, options?: {
    required?: boolean;
}): Promise<T | null>;
export declare function hasJsxFiles(): boolean;
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