code: def save(self, file:PathLikeOrBinaryStream= 'data_save.pkl')->None:
          "Save the `DataBunch` in `self.path/file`. `file` can be file-like (file or buffer)"
          if not getattr(self, 'label_list', False):
              warn("Serializing the `DataBunch` only works when you created it using the data block API.")
              return
          try_save(self.label_list, self.path, filef save(self, file:PathLikeOrBinaryStream= 'data_save.pkl')->None:
          "Save the `DataBunch` in `self.path/file`. `file` can be file-like (file or buffer)"
          if not getattr(self, 'label_list', False):
              warn("Serializing the `DataBunch` only works when you created it using the data block API.")
              return
          try_save(self.label_list, self.path, file)
docs: Save the `DataBunch` in `self.path/file`. `file` can be file-like (file or buffer)