import type { ProxyConfigArray } from 'webpack-dev-server';
/**
 * Extracts route patterns from webpack-dev-server proxy configuration.
 *
 * Handles the webpack-dev-server proxy array format:
 * ```
 * proxy: [
 *   { context: ['/api'], target: 'http://localhost:3000' },
 *   { context: '/ws', target: 'http://localhost:3001' },
 *   { path: '/legacy', target: 'http://localhost:3002' },
 * ]
 * ```
 *
 * @see https://webpack.js.org/configuration/dev-server/#devserverproxy
 */
export declare function extractProxyRoutes(proxy: ProxyConfigArray | undefined): string[];
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