/**
 * Formatting utilities for Next.js performance handler
 */
export declare function formatBundleSize(bytes: number): string;
export declare function formatKilobytes(bytes: number): string;
export declare function getRouteSizeIndicator(sizeKB: number): string;
export declare function formatFirstLoadRoutes(routes: [string, number][]): string;
export declare function formatChunkBreakdown(chunks: Array<{
    name: string;
    size: number;
}>): string;
export declare function formatModuleList(modules: Array<{
    name: string;
    size: number;
}>): string;
export declare function formatNoBundlesMessage(): string;
export declare function formatRecommendations(recommendations: string[]): string;
export declare function formatSummaryPoints(summary: string): string;
//# sourceMappingURL=performance-formatters.d.ts.map