code: def __init__(self, datasets, num_classes, target_transform=None):
      index = tuple(task.index for task in datasets)
      Task.__init__(self, index, num_classes)
      ConcatDataset.__init__(self, datasets)
      for task in self.datasets:
          task.target_transform_append(target_transform)
  
imports: from torch.utils.data import ConcatDataset, Subset
  from torch.utils.data import Dataset
  from torchvision.transforms import Compose
label_desc: Use image node_id 1 to create a new ConcatTask object from inherited base classes: Task, ConcatDataset with example: obj = ConcatTask(datasets, num_classes, target_transform)