let returnType: {
assetContractAddress: Address;
creatorAddress: Address;
currencyContractAddress: Address;
endTimeInSeconds: bigint;
id: bigint;
isReservedListing: boolean;
pricePerToken: bigint;
quantity: bigint;
startTimeInSeconds: bigint;
status: ListingStatus;
tokenId: bigint;
type: "direct-listing";
};