public static Command CreateStreamingSynthesisCommand()
        {
            var streamingSynthesisCommand = new Command("synthesize");

            foreach (var option in CommandLineOptions.CreateStreamingSynthesisOptions())
            {
                streamingSynthesisCommand.AddOption(option);
            }

            streamingSynthesisCommand.Handler = CommandHandler
                                                .Create <string, string>
                                                (
                (synthesizeText, audioNAme) =>
            {
                _client.StreamingSynthesize(synthesizeText, audioNAme).Wait();
            }
                                                );

            return(streamingSynthesisCommand);
        }