You are reading the documentation for SDK v2, which is no longer the latest version. Switch to current
CreateAddLineItemActionParams
Parameters for creating the AddLineItem cart action.
export type CreateAddLineItemActionParams = MarkRequired<Omit<AddMyCartLineItem, "addedAt" | "productId" | "variantId">, "quantity" | "sku">;Referenced Types
MarkRequired- AddMyCartLineItem