class_docstr: Perform a roll augmentation by shifting the window in a circular manner.
code: def __repr__(self) -> str:
      return f"{self.__class__.__name__}(window={self.window})"
  
imports: import argparse
  import math
  import pathlib
  import random
  from typing import Callable, Dict, List, Optional, Union
  import torch
  import torchaudio
  from data.transforms import TRANSFORMATIONS_REGISTRY, BaseTransformation
  from data.transforms.audio_aux import mfccs
label_desc: Use image node_id 4 for calling the Roll obj's underlying member method code with example usage: obj.__repr__() and returns: self, str, self, str