Update app.py

app.py

@@ -33,7 +33,7 @@ from sklearn.preprocessing import StandardScaler
 from sklearn.impute import SimpleImputer
 from sklearn.pipeline import Pipeline, make_pipeline
 from sklearn.model_selection import train_test_split,GridSearchCV, KFold, ParameterGrid 
-from sklearn.ensemble import GradientBoostingSurvivalAnalysis
+# from sklearn.ensemble import GradientBoostingSurvivalAnalysis
 from sklearn.metrics import classification_report, confusion_matrix, accuracy_score, roc_auc_score, cumulative_dynamic_auc, concordance_index_censored
 from sklearn.exceptions import UndefinedMetricWarning
 from sklearn.cluster import DBSCAN