code: def __len__(self):
      return min(len(d) for d in self.datasets)
  
file_path: nlp-architect/nlp_architect/nn/torch/data/dataset.py
imports: import torch
  from typing import List
label_desc: Use image node_id 3 for calling the ParallelDataset obj's underlying member method code with example usage: obj.__len__() and returns: min