code: def __init__(
      self,
      X_train,
      X_test,
      y_train,
      y_test,
      learning_task,
      qid_train=None,
      qid_test=None,
  ):
      self.X_train = X_train
      self.X_test = X_test
      self.y_train = y_train
      self.y_test = y_test
      self.learning_task = learning_task
      # For ranking task
      self.qid_train = qid_train
      self.qid_test = qid_test
  
imports: import os
  from enum import Enum
  import pandas
  import pickle
  import numpy
  from sklearn.model_selection import train_test_split
  from sklearn.datasets import load_svmlight_file
  from urllib.request import urlretrieve
label_desc: Use image node_id 1 to create a new Data object  with example: obj = Data(X_train, X_test, y_train, y_test, learning_task, qid_train, qid_test)