code: def __init__(self, learning_task):
      self.params = {}
      self.model = None
      self.predictions = []
      self.learning_task = learning_task
  
imports: from abc import ABC, abstractmethod
  import lightgbm
  import numpy
  from sklearn.ensemble import RandomForestClassifier, RandomForestRegressor
  import xgboost
  from benchmarks.timer import Timer
  from benchmarks.datasets import LearningTask
label_desc: Use image node_id 2 to create a new TrainEnsembleAlgorithm object from inherited base classes: ABC with example: obj = TrainEnsembleAlgorithm(learning_task)