import { SerialTaskExecuteContext, SerialHandler } from '../handler';
import { BusinessParams } from '../types';
declare class TtsRequest extends SerialHandler<string, Blob> {
    private webSocketInstance;
    private businessParams;
    initProperty(businessParams: Partial<BusinessParams>): void;
    onActive(): void;
    executePreCheck(): boolean;
    execute(context: SerialTaskExecuteContext<string, Blob>): void;
    private generateRequestParams;
    private generateRequestUrl;
    protected onFinish(): void;
}
export default TtsRequest;