import type { H3Event } from 'h3';
export interface CloudflareEnv {
    ASSETS?: {
        fetch: (req: Request | string) => Promise<Response>;
    };
}
/**
 * Get Cloudflare environment from event context or globalThis.__env__ (for scheduled tasks)
 */
export declare function getCfEnv(event?: H3Event): CloudflareEnv | undefined;
/**
 * Check if Cloudflare ASSETS binding is available
 */
export declare function hasAssets(event?: H3Event): boolean;
/**
 * Fetch a public asset, preferring Cloudflare ASSETS binding when available.
 * Falls back to $fetch with timeout to avoid self-fetch hangs on CF Workers.
 */
export declare function fetchPublicAsset<T = unknown>(event: H3Event | undefined, path: string, options?: {
    responseType?: 'json' | 'text' | 'arrayBuffer' | 'stream';
}): Promise<T | null>;