CartLineInput object Fields cartLineId (ID!) Required The ID of the cart line. quantity (Int!) Required The quantity of the cart line to be merged.The max quantity is 2000. Fields cartLineId (ID!) Required The ID of the cart line. quantity (Int!) Required The quantity of the cart line to be merged.The max quantity is 2000. Fields cartLineId (ID!) Required The ID of the cart line. quantity (Int!) Required The quantity of the cart line to be merged.The max quantity is 2000. Fields cartLineId (ID!) Required The ID of the cart line. quantity (Int!) Required The quantity of the cart line to be merged.The max quantity is 2000. Fields cartLineId (ID!) Required The ID of the cart line. quantity (Int!) Required The quantity of the cart line to be merged.The max quantity is 2000. Fields cartLineId (ID!) Required The ID of the cart line. quantity (Int!) Required The quantity of the cart line to be merged.The max quantity is 2000.