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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def is_product_owner(self, team_id):
 """Ensure the user is a PRODUCT_OWNER."""


        if self.is_super_admin():
            return True
        team_id = uuid.UUID(str(team_id))
        return team_id in self.child_teams_ids