class_docstr: Determines if two sentences have a swapped word that has a similar
  probability according to a language model.
  
  Args:
      max_log_prob_diff (float): the maximum decrease in log-probability
          in swapped words from `x` to `x_adv`
      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_log_prob_diff"] + super().extra_repr_keys()
  
file_path: TextAttack/textattack/constraints/grammaticality/language_models/language_model_constraint.py
imports: from abc import ABC, abstractmethod
  from textattack.constraints import Constraint
label_desc: Use image node_id 4 for calling the LanguageModelConstraint obj's underlying member method code with example usage: obj.extra_repr_keys() and returns: unknown