/// <summary>
        /// Return loaded <see cref="TextToSpeechConfiguration"/>.
        /// </summary>
        public static TextToSpeechConfiguration GetTextToSpeechConfiguration(this BaseRuntimeConfiguration runtimeConfiguration)
        {
            if (textToSpeechConfiguration == null)
            {
                textToSpeechConfiguration = TextToSpeechConfiguration.LoadConfiguration();
            }

            return(textToSpeechConfiguration);
        }
 /// <summary>
 /// Loads a new <see cref="TextToSpeechConfiguration"/>
 /// </summary>
 public static void SetTextToSpeechConfiguration(this BaseRuntimeConfiguration runtimeConfiguration,
                                                 TextToSpeechConfiguration ttsConfiguration)
 {
     textToSpeechConfiguration = ttsConfiguration;
 }