export declare const TENCENT_API_HOST = "asr.tencentcloudapi.com";
export declare const TENCENT_API_VERSION = "2019-06-14";
export declare const TENCENT_API_SERVICE = "asr";
export declare const TENCENT_RECORDING_MAX_AUDIO_BYTES: number;
export declare const TENCENT_REALTIME_HOST = "asr.cloud.tencent.com";
export declare const TENCENT_REALTIME_PATH = "/asr/v2";
export interface TencentRecordingAsrOptions {
    readonly audio: Uint8Array;
    readonly appId: string;
    readonly secretId: string;
    readonly secretKey: string;
    readonly engineType: string;
    readonly signal: AbortSignal;
    readonly fetch?: typeof globalThis.fetch;
    /** Injectable wall clock in milliseconds for deterministic tests. */
    readonly now?: () => number;
}
export interface TencentRealtimeAsrOptions {
    readonly appId: string;
    readonly secretId: string;
    readonly secretKey: string;
    readonly engineType: string;
    readonly signal?: AbortSignal;
    readonly now?: () => number;
    readonly webSocketFactory?: (url: string) => TencentWebSocket;
}
export interface TencentRealtimeTranscript {
    readonly text: string;
    readonly final: boolean;
}
export interface TencentWebSocket {
    readonly readyState: number;
    binaryType: string;
    send(data: ArrayBuffer | ArrayBufferView | string): void;
    close(code?: number, reason?: string): void;
    addEventListener(type: string, listener: (event: TencentWebSocketEvent) => void): void;
    removeEventListener(type: string, listener: (event: TencentWebSocketEvent) => void): void;
}
interface TencentWebSocketEvent {
    readonly data?: unknown;
    readonly error?: unknown;
    readonly code?: number;
    readonly reason?: string;
}
export declare function tencentRecordingRequestBody(options: {
    audio: Uint8Array;
    engineType: string;
}): Record<string, unknown>;
export declare function tencentApi3Signature(options: {
    action: string;
    body: string;
    secretId: string;
    secretKey: string;
    timestamp: number;
    host?: string;
    service?: string;
}): string;
export declare function tencentRealtimeQuery(options: {
    appId: string;
    secretId: string;
    secretKey: string;
    engineType: string;
    timestamp: number;
    voiceId?: string;
    nonce?: number;
}): Record<string, string>;
export declare function tencentRealtimeUrl(options: {
    appId: string;
    secretId: string;
    secretKey: string;
    engineType: string;
    timestamp: number;
    voiceId?: string;
    nonce?: number;
}): string;
export declare function transcribeTencentCloudRecording(options: TencentRecordingAsrOptions): Promise<string>;
export declare class TencentRealtimeAsrSession {
    private readonly options;
    private socket;
    private opened;
    private closed;
    private ended;
    private final;
    private transcript;
    private interim;
    private readonly stableSentences;
    private lastError;
    private readonly messageWaiters;
    constructor(options: TencentRealtimeAsrOptions);
    open(): Promise<void>;
    sendAudio(audio: Uint8Array, signal?: AbortSignal): Promise<TencentRealtimeTranscript>;
    finish(signal?: AbortSignal): Promise<string>;
    snapshot(): TencentRealtimeTranscript;
    close(): void;
    private readonly onOpen;
    private readonly onMessage;
    private readonly onError;
    private readonly onClose;
    private setError;
    private rebuildTranscript;
    private requireSocket;
    private waitFor;
    private notifyWaiters;
}
export {};