Listings
getListing()user()getUserListings()getUserListingsCounts()getUserCollectionListings()getUserCollectionListingsCounts()getUserSales()getUserSalesCounts()getUserPurchases()getUserPurchasesCounts()collection()getCollectionListings()getCollectionsListings()getCollectionListingsCounts()getCollectionsListingsCounts()getCollectionListingsStats()getCollectionsListingsStats()app()getAppListings()getAppListingsCounts()getAppListingsStats()new()listAsset()listAssets()listCollectionAssets()updateListing()buyListing()removeListing()