class_docstr: Dataset used to parallelize the transformation of the dataset via a DataLoader
code: def __len__(self):
      return len(self.targets)
  
file_path: vissl/extra_scripts/datasets/create_euro_sat_data_files.py
imports: import argparse
  import os
  import shutil
  from torch.utils.data import DataLoader
  from tqdm import tqdm
  from vissl.utils.download import download_and_extract_archive
label_desc: Use image node_id 2 for calling the _EuroSAT obj's underlying member method code with example usage: obj.__len__() and returns: len