docs: public ServiceCall<Voice> getVoice(GetVoiceOptions getVoiceOptions) {
      Validator.notNull(getVoiceOptions, "getVoiceOptions cannot be null");
      String[] pathSegments = { "v1/voices" };
      String[] pathParameters = { getVoiceOptions.voice() };
      RequestBuilder builder = RequestBuilder.get(RequestBuilder.constructHttpUrl(getEndPoint(), pathSegments,
          pathParameters));
      Map<String, String> sdkHeaders = SdkCommon.getSdkHeaders("text_to_speech", "v1", "getVoice");
      for (Entry<String, String> header : sdkHeaders.entrySet()) {
        builder.header(header.getKey(), header.getValue());
      }
      builder.header("Accept", "application/json");
      if (getVoiceOptions.customizationId() != null) {
        builder.query("customization_id", getVoiceOptions.customizationId());
      }
      return createServiceCall(builder.build(), ResponseConverterUtils.getObject(Voice.class));
    }