def METHOD_NAME(objective):
    objective.data = BL_bestTrialRetrainDataPreproc(objective.data)
    objective.setModelCreator(funcHandle=model_create)
    objective.setModelTrainer(funcHandle=BL_model_train,extArgs=[data_preproc, best_model_retraining])
    objective.addPreModelCreateTask(objParamsKey='training', funcHandle=preproc_training_params)
    return objective