text: class Error(Exception):
      """Base class for other exceptions"""
      pass
  
  
  class WrongInputFormatError(Error):
      pass
  
  
  class NonIterableObjectError(Error):
      pass
  
  
  class NonExistingSlicingMethodError(Error):
      pass
  
  
  class EmptyResultsError(Error):
      pass
  
  
  class WrongRangeObjectFormatError(Error):
      pass