public PlaceBlockerResponse placeBlocker(Direction direction, ShopResponse shop) {
   PlaceBlockerParameters blockerParameters = new PlaceBlockerParameters();
   blockerParameters.setDirection(direction);
   blockerParameters.setShopId(shop.getShopId());
   blockerParameters.setShopOwnerId(participantId);
   return httpGameClient.placeBlocker(blockerParameters);
 }
 public BuyResponse buyStock(int quantity, ShopResponse shop, Stock.StockType stockType) {
   BuyStockParameters buyStockParam = new BuyStockParameters();
   buyStockParam.setShopOwnerId(participantId);
   buyStockParam.setQuantity(quantity);
   buyStockParam.setShopId(shop.getShopId());
   buyStockParam.setStockType(stockType);
   return httpGameClient.buyStock(buyStockParam);
 }
 public PlaceAdvertResponse placeAdvert(
     Direction direction, ShopResponse shop, Stock.StockType stockType) {
   PlaceAdvertParameters advertParameters = new PlaceAdvertParameters();
   advertParameters.setShopOwnerId(participantId);
   advertParameters.setStockType(stockType);
   advertParameters.setShopId(shop.getShopId());
   advertParameters.setDirection(direction);
   return httpGameClient.placeAdvert(advertParameters);
 }