import { SerialHandler, CheckAndExecuteCallback, SerialHandlerExecuteContext } from '@mt-utils/async-handler';
import { SystemConfig, BusinessParams } from './types';
declare class TtsRequest extends SerialHandler<string, string> {
    private systemConfig;
    private businessParams;
    private webSockeSet;
    constructor(systemConfig: SystemConfig, businessParams: Partial<BusinessParams>);
    execute(context: SerialHandlerExecuteContext<string, string>, next: CheckAndExecuteCallback): void;
    private generateRequestParams;
    private generateRequestUrl;
    protected onFinish(): void;
}
export default TtsRequest;