import type { FontDisplay, FontDisplayStrategy } from "./types.js";
/**
 * Generate preconnect link for font CDN
 */
export declare function generatePreconnectLink(url: string): string;
/**
 * Generate DNS prefetch link
 */
export declare function generatePrefetchLink(url: string): string;
/**
 * Generate prefetch link for font file
 */
export declare function generateFontPrefetchLink(url: string, type?: string): string;
/**
 * Convert display strategy to CSS font-display value
 */
export declare function resolveDisplayValue(display?: FontDisplay, strategy?: FontDisplayStrategy): FontDisplay;
/**
 * Generate Font Loading API code for advanced display control
 * This is used for runtime font loading with custom timing
 */
export declare function generateFontLoadingAPI(fontFamily: string, strategy: FontDisplayStrategy): string;
/**
 * Generate CSS for font display with fallback
 */
export declare function generateDisplayCSS(fontFamily: string, display: FontDisplay, fallback?: string[]): string;
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