<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def upd_pos(self, *args):
 """Ask the foundation where I should be, based on what deck I'm for. """

        self.pos = self.parent._get_foundation_pos(self.deck)