class_docstr: Transformation that simulate typos error to transform sentence.
  
      https://arxiv.org/pdf/1711.02173.pdf
code: def mode(self):
      return self._mode
  
file_path: textflint/textflint/generation/transformation/NERCN/ent_typos.py
imports: from ....common.utils.word_op import *
  from ..transformation import Transformation
  from ....common.utils.list_op import trade_off_sub_words
  from textflint.generation.transformation.UTCN import CnHomophones
label_desc: Use image node_id 5 for calling the EntTypos obj's underlying member method code with example usage: obj.mode() and returns: self