import type { FilePath, PackagedBundle } from '@atlaspack/types-internal';
import type { FileSystem } from '@atlaspack/types-internal';
export type AssetStats = {
    filePath: string;
    size: number;
    originalSize: number;
    time: number;
};
export type BundleStats = {
    filePath: string;
    size: number;
    time: number;
    assets: Array<AssetStats>;
};
export type BuildMetrics = {
    bundles: Array<BundleStats>;
};
export default function generateBuildMetrics(bundles: Array<PackagedBundle>, fs: FileSystem, projectRoot: FilePath): Promise<BuildMetrics>;