(self)
return self.next_subscription_filter.exists()
Checks to see if there's another Subscription for this subscriber
        that starts after this subscription.
Checks to see if there's another Subscription for this subscriber
        that starts after this subscription.
Checks to see if there s another Subscription for this subscriber that starts after this subscription .
def is_renewed(self):
        """
        Checks to see if there's another Subscription for this subscriber
        that starts after this subscription.
        """
        return self.next_subscription_filter.exists()
def is_renewed ( self ) : return self . next_subscription_filter . exists ( )