Pipeline(steps=[('column_selector',
                 ColumnSelector(cols=['alcohol', 'density', 'fixed acidity',
                                      'residual sugar', 'sulphates',
                                      'volatile acidity', 'citric acid',
                                      'free sulfur dioxide', 'pH', 'chlorides',
                                      'total sulfur dioxide'])),
                ('preprocessor',
                 ColumnTransformer(remainder='passthrough', sparse_threshold=0,
                                   transformers=[('numerical',
                                                  Pipeline(steps=[('converter',
                                                                   Functi...
                                                   'citric acid',
                                                   'free sulfur dioxide', 'pH',
                                                   'chlorides',
                                                   'total sulfur dioxide'])])),
                ('regressor',
                 LGBMRegressor(colsample_bytree=0.6505873538375593,
                               lambda_l1=497.23364507194253,
                               lambda_l2=10.247278083927856,
                               learning_rate=0.010591811060159174, max_bin=496,
                               max_depth=5, min_child_samples=41,
                               n_estimators=162, num_leaves=9,
                               random_state=668290694,
                               subsample=0.6795749046696467))])
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