Function isListing

Returns value is Readonly<{
    model: "listing";
    lazy: false;
    auctionHouse: AuctionHouse;
    asset: SftWithToken | NftWithToken;
    tradeStateAddress: Pda;
    sellerAddress: PublicKey;
    bookkeeperAddress: Option<PublicKey>;
    receiptAddress: Option<Pda>;
    purchaseReceiptAddress: Option<PublicKey>;
    price: SolAmount | SplTokenAmount;
    tokens: SplTokenAmount;
    createdAt: DateTime;
    canceledAt: Option<DateTime>;
}>