class_docstr: Mask input spec along a specified axis with variable maximum width.
  
  Formula:
      max_width = max_width_ratio * seq_len
class_docstr_tok: ["Mask","input","spec","along","a","specified","axis","with","variable","maximum","width",".","Formula",":","max_width","=","max_width_ratio","*","seq_len"]
code: def extra_repr(self):
      return (
          f"mask_width_ratio_range={self.mask_width_ratio_range}, "
          f"num_mask={self.num_mask}, axis={self.mask_axis}"
      )
  
file_path: espnet/espnet2/layers/mask_along_axis.py
imports: import math
  from typing import Sequence, Union
  import torch
  from typeguard import check_argument_types
label_desc: Use image node_id 2 for calling the MaskAlongAxisVariableMaxWidth obj's underlying member method code with example usage: obj.extra_repr() and returns: str, self, str, self, str, self