import { EventEmitter } from "node:events";
import { type BailianRegion } from "./bailian-endpoints.js";
type SocketOptions = {
    headers?: Record<string, string>;
};
type ProviderSocket = EventEmitter & {
    readyState: number;
    send: (data: string | Buffer) => void;
    close: (code?: number, reason?: string) => void;
};
type BailianAsrSocketFactory = (url: string, options: SocketOptions) => ProviderSocket;
export interface BailianAsrConfig {
    apiKey: string;
    region: BailianRegion;
    model: string;
    sampleRate: number;
    language: string;
}
export interface BailianAsrClient {
    on(event: "ready", handler: () => void): this;
    on(event: "partial" | "final", handler: (text: string) => void): this;
    on(event: "error", handler: (error: Error) => void): this;
    on(event: "closed", handler: (code?: number, reason?: string) => void): this;
    sendPcm(chunk: Buffer): void;
    stop(): void;
    close(): void;
}
interface BailianAsrClientOptions {
    socketFactory?: BailianAsrSocketFactory;
    eventIdFactory?: () => string;
}
export declare function createBailianAsrClient(config: BailianAsrConfig, options?: BailianAsrClientOptions): BailianAsrClient;
export {};
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