code: public void create(String faceListId, CreateFaceListsOptionalParameter createOptionalParameter) {
          createWithServiceResponseAsync(faceListId, createOptionalParameter).toBlocking().single().body();
      }
docs: Create an empty face list. Up to 64 face lists are allowed to exist in one subscription.
  
  @param faceListId Id referencing a particular face list.
  @param createOptionalParameter the object representing the optional parameters to be set before calling this API
  @throws IllegalArgumentException thrown if parameters fail the validation
  @throws APIErrorException thrown if the request is rejected by server
  @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent