ReadonlyactionReadonlyproductResourceIdentifier of the Product
Optional ReadonlyvariantDetermines which Variants of the previously added Product are to be included in, or excluded from, the Product Selection. Leave it empty to unset an existing Variant Selection.
Updates the Product Variant Selection of an existing Product Selection Assignment. A ProductVariantSelection can only be set if the Product has already been included in the Product Selection with
IndividualProductSelectionMode.