BuyNowParams type

Signature:

export type BuyNowParams<TListingType = ListingType> = TListingType extends ListingType.Direct ? {
    id: BigNumberish;
    type: ListingType.Direct;
    buyAmount: BigNumberish;
    buyForWallet?: WalletAddress;
} : {
    id: BigNumberish;
    type: ListingType.Auction;
};

References: WalletAddress