| keyValueStorage | Enable or disable key-value Storage. |
| iCloudDocument | Enable or disable iCloud document storage. |
| customContainer | Array of containers in which to store documents on iCloud. Information about custom container types can be found here: https://developer.apple.com/library/content/documentation/IDEs/Conceptual/AppDistributionGuide/AddingCapabilities/AddingCapabilities.html#//apple_ref/doc/uid/TP40012582-CH26-SW22 |