def get(self):
players = Player.query()
games = Game.query()
cards = Card.query()
decks = Deck.query()
ndb.delete_multi([p for p in players.iter(keys_only=True)])
ndb.delete_multi([g for g in games.iter(keys_only=True)])
ndb.delete_multi([c for c in cards.iter(keys_only=True)])
ndb.delete_multi([d for d in decks.iter(keys_only=True)])
self.response.headers['Content/Type'] = 'text/html'
self.response.out.write('Deleted everything. Smooth move.')
