code: def __init__(self):
      super().__init__()
      self.columns = None
  
file_path: mlflow/examples/pytorch/AxHyperOptimizationPTL/iris_data_module.py
imports: import pytorch_lightning
  import torch
  from sklearn.datasets import load_iris
  from torch.utils.data import DataLoader, TensorDataset, random_split
label_desc: Use image node_id 1 to create a new IrisDataModule object from inherited base classes: pl with example: obj = IrisDataModule()