code: def normalize_text(cls, text):
      # stage 0 : text strip
      text = text.strip()
  
      # stage 1 : normalize numbers
      text = cls._normalize_numbers(text)
  
      # stage 2 : normalize english text
      text = cls._normalize_english_text(text)
      return text
  
imports: import re
label_desc: Use image node_id 3 for calling the KoreanCleaner obj's underlying member method code with example usage: obj.normalize_text(cls, text) and returns: text