code: def open(self, fn):
          "Open image in `fn`, subclass and overwrite for custom behavior."
          return open_image(fn, convert_mode=self.convert_mode, after_open=self.after_openf open(self, fn):
          "Open image in `fn`, subclass and overwrite for custom behavior."
          return open_image(fn, convert_mode=self.convert_mode, after_open=self.after_open)
docs: Open image in `fn`, subclass and overwrite for custom behavior.