code: def save(self, filething=None, v2_version=4, v23_sep='/', padding=None):
          
  
          fileobj = filething.fileobj
  
          iff_file = IFFFile(fileobj)
  
          if u'ID3' not in iff_file:
              iff_file.insert_chunk(u'ID3')
  
          chunk = iff_file[u'ID3']
  
          try:
              data = self._prepare_data(
                  fileobj, chunk.data_offset, chunk.data_size, v2_version,
                  v23_sep, padding)
          except ID3Error as e:
              reraise(error, e, sys.exc_info()[2])
  
          new_size = len(data)
          new_size += new_size % 2  # pad byte
          assert new_size % 2 == 0
          chunk.resize(new_size)
          data += (new_size - len(data)) * b'\x00'
          assert new_size == len(data)
          chunk.write(data)
docs: Save ID3v2 data to the AIFF file