const provider = new SuaveProvider(kettleUrl)
const wallet = new SuaveWallet(pk, provider)

const StoreContract = new SuaveContract(confidentialContractAdd, storeABI, wallet)
const milkLiters = 2
const milkType = 'whole'
// Non-confidential methods are called as usual
const milkPrice = await StoreContract.milkSpotPrice(milkType)
const confidentialInputs = createPaymentBundle(milkPrice, milkLiters)
// Response is ConfidentialTransactionResponse 
const res = await StoreContract.buyMilk.sendConfidentialRequest(milkType, milkLiters, { confidentialInputs })
// Receipt is a normal EVM transaction receipt
const receipt = await res.wait()

const ccr = await StoreContract.buyMilk.prepareConfidentialRequest(milkType, milkLiters, { confidentialInputs }) 

const tx = await provider.getConfidentialTransaction('0xafac2...')