import { Transform } from 'node:stream';
import TinySiteMap from './TinySiteMap.mjs';
export type SitemapEntry = import('./TinySiteMap.mjs').SitemapEntry;
export type SitemapIndexEntry = import('./TinySiteMap.mjs').SitemapIndexEntry;
export type SitemapNamespace = import('./TinySiteMap.mjs').SitemapNamespace;
export type TinySiteMapStreamOptions = {
    /**
     * - Error handling level. Defaults to 'warn'.
     */
    level?: 'silent' | 'warn' | 'error';
    /**
     * - XML namespaces or attributes to include.
     */
    xmlns?: import('./TinySiteMap.mjs').SitemapNamespace[];
};
/**
 * @typedef {import('./TinySiteMap.mjs').SitemapEntry} SitemapEntry
 * @typedef {import('./TinySiteMap.mjs').SitemapIndexEntry} SitemapIndexEntry
 * @typedef {import('./TinySiteMap.mjs').SitemapNamespace} SitemapNamespace
 */
/**
 * @typedef {Object} TinySiteMapStreamOptions
 * @property {'silent'|'warn'|'error'} [level] - Error handling level. Defaults to 'warn'.
 * @property {import('./TinySiteMap.mjs').SitemapNamespace[]} [xmlns] - XML namespaces or attributes to include.
 */
/**
 * A Transform stream for generating XML sitemaps incrementally.
 * @extends Transform
 */
declare class TinySiteMapStream extends Transform {
    #private;
    /**
     * @param {TinySiteMap} instance - An instance of TinySiteMap to inherit configuration.
     * @param {TinySiteMapStreamOptions} [options] - Stream-specific options.
     */
    constructor(instance: TinySiteMap, options?: TinySiteMapStreamOptions);
    /**
     * Processes a sitemap entry, validates its content, and pushes the resulting XML fragment to the stream.
     * @param {SitemapEntry | SitemapIndexEntry} entry
     * @param {string} encoding
     * @param {import('node:stream').TransformCallback} callback
     */
    _transform(entry: SitemapEntry | SitemapIndexEntry, encoding: string, callback: import('node:stream').TransformCallback): void;
    /**
     * Finalizes the stream by ensuring the XML footer is appended.
     * @param {import('node:stream').TransformCallback} cb
     */
    _flush(cb: import('node:stream').TransformCallback): void;
}
export default TinySiteMapStream;
//# sourceMappingURL=TinySiteMapStream.d.mts.map