code: def format(self, version=None, wipe=None):
          
          return super(Type4Tag, self).format(version, wipe)
docs: Erase the NDEF message on a Type 4 Tag.
  
          The :meth:`format` method writes the length of the NDEF
          message on a Type 4 Tag to zero, thus the tag will appear to
          be empty. If the *wipe* argument is set to some integer then
          :meth:`format` will also overwrite all user data with that
          integer (mod 256).
  
          Despite it's name, the :meth:`format` method can not format a
          blank tag to make it NDEF compatible; this requires
          proprietary information from the manufacturer.