code: def __len__(self) -> int:
      return 1
  
imports: from abc import ABC, abstractmethod
  from copy import deepcopy
  from typing import Any, Dict, Iterator, List, Optional, Tuple, Union, overload
  import numpy
  from .None import _default_seed
label_desc: Use image node_id 21 for calling the _Augmenter obj's underlying member method code with example usage: obj.__len__() and returns: int