code: public ServiceCall<TrainingQuery> addTrainingData(AddTrainingDataOptions addTrainingDataOptions) {
      Validator.notNull(addTrainingDataOptions, "addTrainingDataOptions cannot be null");
      String[] pathSegments = { "v1/environments", "collections", "training_data" };
      String[] pathParameters = { addTrainingDataOptions.environmentId(), addTrainingDataOptions.collectionId() };
      RequestBuilder builder = RequestBuilder.post(RequestBuilder.constructHttpUrl(getEndPoint(), pathSegments,
          pathParameters));
      builder.query("version", versionDate);
      Map<String, String> sdkHeaders = SdkCommon.getSdkHeaders("discovery", "v1", "addTrainingData");
      for (Entry<String, String> header : sdkHeaders.entrySet()) {
        builder.header(header.getKey(), header.getValue());
      }
      builder.header("Accept", "application/json");
      final JsonObject contentJson = new JsonObject();
      if (addTrainingDataOptions.naturalLanguageQuery() != null) {
        contentJson.addProperty("natural_language_query", addTrainingDataOptions.naturalLanguageQuery());
      }
      if (addTrainingDataOptions.filter() != null) {
        contentJson.addProperty("filter", addTrainingDataOptions.filter());
      }
      if (addTrainingDataOptions.examples() != null) {
        contentJson.add("examples", GsonSingleton.getGson().toJsonTree(addTrainingDataOptions.examples()));
      }
      builder.bodyJson(contentJson);
      return createServiceCall(builder.build(), ResponseConverterUtils.getObject(TrainingQuery.class));
    }
docs: Add query to training data.
  
  Adds a query to the training data for this collection. The query can contain a filter and natural language query.
  
  @param addTrainingDataOptions the {@link AddTrainingDataOptions} containing the options for the call
  @return a {@link ServiceCall} with a response type of {@link TrainingQuery}