code: def post_event_public_discount(self, id, discount_id, **data):
          
          
          return self.post("/events/{0}/public_discounts/{0}/".format(id,discount_id), data=data)
docs: POST /events/:id/public_discounts/:discount_id/
          Updates a public discount; returns the result as a :format:`discount` as the key ``discount``.