Untitled

        $payload = [
            'Keywords' => $keyword,
            'Resources' => [
                'BrowseNodeInfo.BrowseNodes',
                'BrowseNodeInfo.BrowseNodes.Ancestor',
                'BrowseNodeInfo.BrowseNodes.SalesRank',
                'BrowseNodeInfo.WebsiteSalesRank',
                'CustomerReviews.Count',
                'CustomerReviews.StarRating',
                'Images.Primary.Small',
                'Images.Primary.Medium',
                'Images.Primary.Large',
                'Images.Variants.Small',
                'Images.Variants.Medium',
                'Images.Variants.Large',
                'ItemInfo.ByLineInfo',
                'ItemInfo.ContentInfo',
                'ItemInfo.ContentRating',
                'ItemInfo.Classifications',
                'ItemInfo.ExternalIds',
                'ItemInfo.Features',
                'ItemInfo.ManufactureInfo',
                'ItemInfo.ProductInfo',
                'ItemInfo.TechnicalInfo',
                'ItemInfo.Title',
                'ItemInfo.TradeInInfo',
                'Offers.Listings.Availability.MaxOrderQuantity',
                'Offers.Listings.Availability.Message',
                'Offers.Listings.Availability.MinOrderQuantity',
                'Offers.Listings.Availability.Type',
                'Offers.Listings.Condition',
                'Offers.Listings.Condition.SubCondition',
                'Offers.Listings.DeliveryInfo.IsAmazonFulfilled',
                'Offers.Listings.DeliveryInfo.IsFreeShippingEligible',
                'Offers.Listings.DeliveryInfo.IsPrimeEligible',
                'Offers.Listings.DeliveryInfo.ShippingCharges',
                'Offers.Listings.IsBuyBoxWinner',
                'Offers.Listings.LoyaltyPoints.Points',
                'Offers.Listings.MerchantInfo',
                'Offers.Listings.Price',
                'Offers.Listings.ProgramEligibility.IsPrimeExclusive',
                'Offers.Listings.ProgramEligibility.IsPrimePantry',
                'Offers.Listings.Promotions',
                'Offers.Listings.SavingBasis',
                'Offers.Summaries.HighestPrice',
                'Offers.Summaries.LowestPrice',
                'Offers.Summaries.OfferCount',
                'ParentASIN',
                'RentalOffers.Listings.Availability.MaxOrderQuantity',
                'RentalOffers.Listings.Availability.Message',
                'RentalOffers.Listings.Availability.MinOrderQuantity',
                'RentalOffers.Listings.Availability.Type',
                'RentalOffers.Listings.BasePrice',
                'RentalOffers.Listings.Condition',
                'RentalOffers.Listings.Condition.SubCondition',
                'RentalOffers.Listings.DeliveryInfo.IsAmazonFulfilled',
                'RentalOffers.Listings.DeliveryInfo.IsFreeShippingEligible',
                'RentalOffers.Listings.DeliveryInfo.IsPrimeEligible',
                'RentalOffers.Listings.DeliveryInfo.ShippingCharges',
                'RentalOffers.Listings.MerchantInfo',
                'SearchRefinements',
            ],
            'PartnerTag' => self::associateTag,
            'PartnerType' => 'Associates',
            'Marketplace' => self::marketplace
        ];