You are reading the documentation for SDK v2, which is no longer the latest version. Switch to current
ProductVariant
export type ProductVariant = {
__typename?: 'ProductVariant';
id: Scalars['Int'];
key?: Maybe<Scalars['String']>;
sku?: Maybe<Scalars['String']>;
prices?: Maybe<Array<ProductPrice>>;
price?: Maybe<ProductPrice>;
images: Array<Image>;
assets: Array<Asset>;
availability?: Maybe<ProductVariantAvailabilityWithChannels>;
attributesRaw: Array<RawProductAttribute>;
};