/** Bundler module id → source path (e.g. `[project]/src/app/leaky/page.tsx`). */
export type ModuleRegistry = ReadonlyMap<number, string>;
export declare function extractChunkModules(code: string, rawMap: unknown): Map<number, string>;
/**
 * Builds the module registry by scanning every server chunk that has an
 * adjacent sourcemap. Missing maps, unparseable chunks, or non-Turbopack
 * builds simply contribute nothing: an empty registry means every finding
 * degrades to `unattributed`.
 */
export declare function extractModuleRegistry(nextServerDir: string): Promise<ModuleRegistry>;