code: def save(self, filename, compression=6, fformat=None,
               thumbnail_name=None, thumbnail_size=None):
          
          self.pil_save(filename, compression, fformat,
                        thumbnail_name, thumbnail_size)
docs: Save the image to the given *filename*. For some formats like jpg
          and png, the work is delegated to :meth:`pil_save`, which doesn't
          support the *compression* option.