class_docstr: Dataset wrapper to perform AugMix or other clean/augmentation mixes
class_docstr_tok: ["Dataset","wrapper","to","perform","AugMix","or","other","clean\/augmentation","mixes"]
code: def __len__(self):
      return len(self.dataset)
  
imports: import io
  import logging
  from typing import Optional
  import torch
  import torch.utils.data
  from PIL import Image
  from .readers import create_reader
label_desc: Use image node_id 7 for calling the AugMixDataset obj's underlying member method code with example usage: obj.__len__() and returns: len