old_contents: """
  a simple package
  """
  
  
  __version__ = '0.0.6'
  
  import sys
  import types
  
  class Undefined(types.ModuleType):
      """
      Simply a global object that act as undefined.
      """
  
      __version__ = __version__
  
  
      @property
      def Undefined(self):
          return self
  
      def __call__(self, value):
          return value is self
  
      def __eq__(self, other):
          raise NotImplementedError('Cannot compare undefined')
  
      def __repr__(self):
          return self.__class__.__name__
  
      def __bool__(self):
          raise NotImplementedError('Undefined is not defined, neither True, nor False.')
  
      def __str__(self):
          raise NotImplementedError("Cannot represent undefined !")
  
  
  Undefined.__name__ = 'Undefined'
  Undefined = Undefined('undefined', """
      Simply a global object that act as undefined.
      """
  )
  
  Undefined.__version__ = __version__
  
  if sys.modules[__name__] is Undefined:
      print('doing nothing')
      pass
  else:
     sys.modules[__name__] = Undefined
  
new_contents: """
  a simple package
  """
  
  
  __version__ = '0.0.7'
  
  import sys
  import types
  
  class Undefined(types.ModuleType):
      """
      Simply a global object that act as undefined.
      """
  
      __version__ = __version__
  
  
      @property
      def Undefined(self):
          return self
  
      def __call__(self, value):
          return value is self
  
      def __eq__(self, other):
          raise NotImplementedError('Cannot compare undefined')
  
      def __repr__(self):
          return self.__class__.__name__
  
      def __bool__(self):
          raise NotImplementedError('Undefined is not defined, neither True, nor False.')
  
      def __str__(self):
          raise NotImplementedError("Cannot represent undefined !")
  
  
  Undefined.__name__ = 'Undefined'
  Undefined = Undefined('undefined', """
      Simply a global object that act as undefined.
      """
  )
  
  Undefined.__version__ = __version__
  
  if sys.modules[__name__] is Undefined:
      print('doing nothing')
      pass
  else:
     sys.modules[__name__] = Undefined
  
subject: bump version number