<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def show(self):
 """Controls if the viewlet should be rendered """

        url = self.request.getURL()
        # XXX: Hack to show the viewlet only on the AR base_view
        if not any(map(url.endswith, ["base_view", "manage_results"])):
            return False
        return self.attachments_view.user_can_add_attachments() or \
               self.attachments_view.user_can_update_attachments()