export type GrammarModule = {
    language?: unknown;
    typescript?: GrammarModule;
    tsx?: GrammarModule;
    [key: string]: unknown;
};
/** On-disk cache of npm-installed tree-sitter grammar packages. */
export declare function grammarCacheDir(): string;
/**
 * Install an npm grammar package into the shared cache if missing, then require it.
 * Reuses the cache across CLI invocations.
 */
export declare function loadGrammarPackage(npmPackage: string): GrammarModule;
/** Resolve the value to pass to parser.setLanguage. */
export declare function resolveLanguage(mod: GrammarModule, exportName?: string): unknown;
export declare function readCachedPackageVersion(npmPackage: string): string | null;