add_class_train_data_knnadd_sample_class_knnclassify_class_knnclear_class_knncreate_class_knndeserialize_class_knnget_class_train_data_knnget_params_class_knnget_sample_class_knnget_sample_num_class_knnread_class_knnselect_feature_set_knnserialize_class_knnset_params_class_knntrain_class_knnwrite_class_knn