def groups_to_display(self, value):
        """An array containing the unsubscribe groups that you would like to be
        displayed on the unsubscribe preferences page.

        :param value: An array containing the unsubscribe groups that you
                      would like to be displayed on the unsubscribe
                      preferences page.
        :type value: array(int)
        """
        if value is not None and len(value) > 25:
            raise ValueError("New groups_to_display exceeds max length of 25.")
        self._groups_to_display = value