<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def post_operations(self, mode=None):
 """ Return post-operations only for the mode asked """

        version_mode = self._get_version_mode(mode=mode)
        return version_mode.post_operations