ReadonlyactionReadonlyaddressOptional ReadonlyfieldsObject containing the Custom Fields fields for the itemShippingAddress.
Required if at least one Custom Field is defined as required in the `fieldDefinitions` of the referenced [Type](ctp:api:type:Type).
Optional ReadonlytypeDefines the Type that extends the itemShippingAddress with Custom Fields.
If absent, any existing Type and Custom Fields are removed from the itemShippingAddress.
keyof the Address initemShippingAddresses.