オファーの作成

ICheckout checkout = new Checkout(_wallet, _chain);
Step[] steps = await checkout.GenerateOfferTransaction(collectionContractAddress, tokenId, amount, ContractType.ERC1155, currencyTokenAddress, pricePerTokenInstance, expiryDateTime);
TransactionReturn result = await steps.SubmitAsTransactions(_wallet, _chain);
if (result is SuccessfulTransactionReturn successTransaction) {
    // Handle success case
}else {
    // Handle fail case
}

            BoilerplateFactory.OpenCreateOfferPanel(Transform parent, ICheckout checkout, TokenBalance item, Action onClose = null)

            BoilerplateFactory. OpenCreateOfferPanel(Transform parent,ICheckout checkout, CollectibleOrder item, Action onClose = null)