import { ProxyConfig } from './types';
export declare class AudioProxyServer {
    private app;
    private server;
    private config;
    private actualPort;
    private infoCache;
    constructor(config?: ProxyConfig);
    private setupMiddleware;
    private setupRoutes;
    private canSendJsonResponse;
    private getRequestUrl;
    private getCachedInfo;
    private setCachedInfo;
    private isPrivateOrLocalHost;
    private normalizeRequestError;
    start(): Promise<void>;
    stop(): Promise<void>;
    getActualPort(): number;
    getProxyUrl(): string;
}
export declare function createProxyServer(config?: ProxyConfig): AudioProxyServer;
export declare function startProxyServer(config?: ProxyConfig): Promise<AudioProxyServer>;
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