class_docstr: A constraint on edit distance (Levenshtein Distance).
  
  Args:
      max_edit_distance (int): Maximum edit distance allowed.
      compare_against_original (bool):  If `True`, compare new `x_adv` against the original `x`.
          Otherwise, compare it against the previous `x_adv`.
class_docstr_tok: ["A","constraint","on","edit","distance","(","Levenshtein","Distance",")",".","Args",":","max_edit_distance","(","int",")",":","Maximum","edit","distance","allowed",".","compare_against_original","(","bool",")",":","If","`","True","`",",","compare","new","`","x_adv","`","against","the","original","`","x","`",".","Otherwise",",","compare","it","against","the","previous","`","x_adv","`","."]
code: def extra_repr_keys(self):
      return ["max_edit_distance"] + super().extra_repr_keys()
  
imports: import editdistance
  from textattack.constraints import Constraint
label_desc: Use image node_id 3 for calling the LevenshteinEditDistance obj's underlying member method code with example usage: obj.extra_repr_keys() and returns: unknown