I cannot adjust the price of the immersive engineering seed bag via this script:

//ShopName, PurchasableId, NewGoldCost
mods.harvestfestival.Shops.adjustPurchasable("harvestfestival:general", "immersiveengineering_hempSeeds", 150);

mods.harvestfestival.Shops.addPurchasable("harvestfestival:carpenter", immersiveengineering:hempSeeds, 10 );
use these instead of string