code: def save(self, filething=None, v1=1, v2_version=4, v23_sep='/',
               padding=None):
          
  
          if v2_version == 3:
              # EasyID3 only works with v2.4 frames, so update_to_v23() would
              # break things. We have to save a shallow copy of all tags
              # and restore it after saving. Due to CHAP/CTOC copying has
              # to be done recursively implemented in ID3Tags.
              backup = self.__id3._copy()
              try:
                  self.__id3.update_to_v23()
                  self.__id3.save(
                      filething, v1=v1, v2_version=v2_version, v23_sep=v23_sep,
                      padding=padding)
              finally:
                  self.__id3._restore(backup)
          else:
              self.__id3.save(filething, v1=v1, v2_version=v2_version,
                              v23_sep=v23_sep, padding=padding)
docs: save(filething=None, v1=1, v2_version=4, v23_sep='/', padding=None)
  
          Save changes to a file.
          See :meth:`mutagen.id3.ID3.save` for more info.