code: public Observable<Void> deletePredictionAsync(UUID projectId, List<String> ids) {
          return deletePredictionWithServiceResponseAsync(projectId, ids).map(new Func1<ServiceResponse<Void>, Void>() {
              @Override
              public Void call(ServiceResponse<Void> response) {
                  return response.body();
              }
          });
      }
docs: Delete a set of predicted images and their associated prediction results.
  
  @param projectId The project id
  @param ids The prediction ids. Limited to 64
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the {@link ServiceResponse} object if successful.