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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 has_add_permission(self, request):
 """ Returns True if the requesting user is allowed to add an object, False otherwise. """

        perm_string = '%s.add_%s' % (self.model._meta.app_label,
            self.model._meta.object_name.lower()
        )
        return request.user.has_perm(perm_string)