MarketplaceRelationship

{
    "marketplaceId": "ATVPDKIKX0DER",
    "relationships": [
        {
            "childSkus": [
                "CHILD-SKU-1",
                "CHILD-SKU-2"
            ],
            "parentSkus": [
                "PARENT-SKU-A"
            ],
            "variationTheme": {
                "attributes": [
                    "Color",
                    "Size"
                ],
                "theme": "SizeColor"
            },
            "type": "VARIATION"
        }
    ]
}