import type { NitroApp } from 'nitropack/types';
import type { ModuleRuntimeConfig, NitroUrlResolvers, SitemapIndexEntry } from '../../../types.js';
export declare function urlsToIndexXml(sitemaps: SitemapIndexEntry[], resolvers: NitroUrlResolvers, { version, xsl, credits, minify }: Pick<ModuleRuntimeConfig, 'version' | 'xsl' | 'credits' | 'minify'>, errorInfo?: {
    messages: string[];
    urls: string[];
}): string;
export declare function buildSitemapIndex(resolvers: NitroUrlResolvers, runtimeConfig: ModuleRuntimeConfig, nitro?: NitroApp): Promise<{
    entries: SitemapIndexEntry[];
    failedSources: Array<{
        url: string;
        error: string;
    }>;
}>;