old_contents: from typing import Optional
  
  
  class Colour(object):
      """
      Color output in terminal so warnings/errors stick out.
      """
      HEADER = '\033[95m'
      OKBLUE = '\033[94m'
      OKGREEN = '\033[92m'
      WARNING = '\033[93m'
      FAIL = '\033[91m'
      ENDC = '\033[0m'
      BOLD = '\033[1m'
      UNDERLINE = '\033[4m'
  
      def __init__(self):
          raise NotImplementedError
  
      @classmethod
      def text(cls, txt: str, status: Optional[str] = None) -> str:
          """colorize specific text
  
          :param txt:                     text printed to console
          :param status:                  the type of status depends on the color
  
          :return:                        colorized text string
          """
          if status == 'fail':
              return cls.FAIL + txt + cls.ENDC
          elif status == 'ok':
              return cls.OKGREEN + txt + cls.ENDC
          elif status == 'warn':
              return cls.WARNING + txt + cls.ENDC
          else:
              return txt
  
new_contents: 
  
  class Colour(object):
      """
      Color output in terminal so warnings/errors stick out.
      """
      HEADER = '\033[95m'
      OKBLUE = '\033[94m'
      OKGREEN = '\033[92m'
      WARNING = '\033[93m'
      FAIL = '\033[91m'
      ENDC = '\033[0m'
      BOLD = '\033[1m'
      UNDERLINE = '\033[4m'
  
      def __init__(self):
          raise NotImplementedError
  
      @classmethod
      def text(cls, txt: str, status: str = None) -> str:
          """colorize specific text
  
          :param txt:                     text printed to console
          :param status:                  the type of status depends on the color
  
          :return:                        colorized text string
          """
          if status == 'fail':
              return cls.FAIL + txt + cls.ENDC
          elif status == 'ok':
              return cls.OKGREEN + txt + cls.ENDC
          elif status == 'warn':
              return cls.WARNING + txt + cls.ENDC
          else:
              return txt
  
subject: remove import