class_docstr: A constraint disallowing the modification of words within a specific
  input column.
  
  For example, can prevent modification of 'premise' during
  entailment.
class_docstr_tok: ["A","constraint","disallowing","the","modification","of","words","within","a","specific","input","column",".","For","example",",","can","prevent","modification","of","'premise","'","during","entailment","."]
code: def extra_repr_keys(self):
      return ["matching_column_labels", "columns_to_ignore"]
  
imports: from textattack.constraints import PreTransformationConstraint
label_desc: Use image node_id 3 for calling the InputColumnModification obj's underlying member method code with example usage: obj.extra_repr_keys() and returns: list