问题 I am training a model using cross validation like so: classifier = lgb.Booster( params=params, train_set=lgb_train_set, ) result = lgb.cv( init_model=classifier, params=params, train_set=lgb_train_set, num_boost_round=1000, early_stopping_rounds=20, verbose_eval=50, shuffle=True ) I would like to continue training the model be running the second command multiple times (maybe with a new training set or with different parameters) and it would continue improving the model. However, when I try