Returns a Boolean value indicating whether the specified key is managed by an administrator.
- iOS 2.0+
- macOS 10.2+
- Mac Catalyst 13.0+
- tvOS 9.0+
- watchOS 2.0+
The key whose status you want to check.
YES if the value of the specified key is managed by an administrator, otherwise
This method assumes that the key is a preference associated with the current user and application. For managed keys, the application should disable any user interface that allows the user to modify the value of