os property
The mobile device's operating system, for example IOS 4.3 or Android 2.3.5.
This property can be [updated](/admin-sdk/directory/v1/reference/mobiledevices/update.html). For more information, see the [Developer's Guide](/admin-sdk/directory/v1/guides/manage-mobile-devices#update_mobile_device).
Implementation
core.String? os;