code: def save(self, new_path=None):
          
          self.saved_in_temp = new_path is None
          if new_path is None:
              fd, new_path = tempfile.mkstemp()
              os.close(fd)
  
          if self.current_path:
              shutil.move(self.current_path, new_path)
          else:
              with open(new_path, 'wb') as dest:
                  _copy_stream(self._data, dest, self._size)
          self.current_path = new_path
docs: Moves or creates the file with stream contents to a new location.
  
          Args:
              new_path: path to move to, if None a temporary file is created.