text: class CheckerError(Exception):
      pass
  
  
  class FunctionCheckerError(CheckerError):
      pass
  
  
  class TypeCheckerError(CheckerError):
      pass
  
  
  class ListCheckerError(CheckerError):
      pass
  
  
  class DictCheckerError(CheckerError):
      pass
  
  
  class MissKeyCheckerError(CheckerError):
      pass
  