code: public ServiceCall<Entity> createEntity(CreateEntityOptions createEntityOptions) {
      Validator.notNull(createEntityOptions, "createEntityOptions cannot be null");
      String[] pathSegments = { "v1/workspaces", "entities" };
      String[] pathParameters = { createEntityOptions.workspaceId() };
      RequestBuilder builder = RequestBuilder.post(RequestBuilder.constructHttpUrl(getEndPoint(), pathSegments,
          pathParameters));
      builder.query("version", versionDate);
      Map<String, String> sdkHeaders = SdkCommon.getSdkHeaders("conversation", "v1", "createEntity");
      for (Entry<String, String> header : sdkHeaders.entrySet()) {
        builder.header(header.getKey(), header.getValue());
      }
      builder.header("Accept", "application/json");
      final JsonObject contentJson = new JsonObject();
      contentJson.addProperty("entity", createEntityOptions.entity());
      if (createEntityOptions.description() != null) {
        contentJson.addProperty("description", createEntityOptions.description());
      }
      if (createEntityOptions.metadata() != null) {
        contentJson.add("metadata", GsonSingleton.getGson().toJsonTree(createEntityOptions.metadata()));
      }
      if (createEntityOptions.fuzzyMatch() != null) {
        contentJson.addProperty("fuzzy_match", createEntityOptions.fuzzyMatch());
      }
      if (createEntityOptions.values() != null) {
        contentJson.add("values", GsonSingleton.getGson().toJsonTree(createEntityOptions.values()));
      }
      builder.bodyJson(contentJson);
      return createServiceCall(builder.build(), ResponseConverterUtils.getObject(Entity.class));
    }
docs: Create entity.
  
  Create a new entity, or enable a system entity.
  
  This operation is limited to 1000 requests per 30 minutes. For more information, see **Rate limiting**.
  
  @param createEntityOptions the {@link CreateEntityOptions} containing the options for the call
  @return a {@link ServiceCall} with a response type of {@link Entity}