Import Sklearn libraries and functions

from sklearn.preprocessing import LabelEncoder
from sklearn.preprocessing import StandardScaler
from sklearn.compose import ColumnTransformer
from sklearn.pipeline import make_pipeline
from lightgbm import LGBMClassifier
from category_encoders import OneHotEncoder
from sklearn.model_selection import cross_val_predict
from warnings import filterwarnings
from sklearn.impute import SimpleImputer