如何将 sklearn 管道保存到 json 文件？

Question

我有我制作的这个自定义 sklearn 管道。 我想将它保存到我的数据库中，所以我需要将其转换为 json 格式。 我怎么能那样做？

Pipeline(steps=[('cleaner',
                 <ml.datatransformers.DataCleaner object at 0x000001C6936CB5B0>),
                ('engineering',
                 <ml.datatransformers.FeatureEngineering object at 0x000001C695C5D2E0>),
                ('prepare',
                 <ml.datatransformers.PrepareModel object at 0x000001C696ED0220>),
                ('xgb',
                 XGBRegressor(base_score=0.5, booster='gbtree', callbacks=None,
                              colsample_bylevel=1.0, colsample_bynode=...
                              gamma=0, gpu_id=-1, grow_policy='depthwise',
                              importance_type=None, interaction_constraints='',
                              learning_rate=0.300000012, max_bin=256,
                              max_cat_to_onehot=4, max_delta_step=0,
                              max_depth=10, max_leaves=0, min_child_weight=1.0,
                              missing=-999.0, monotone_constraints='()',
                              n_estimators=780, n_jobs=0, num_parallel_tree=1,
                              predictor='auto', random_state=0, reg_alpha=0,