DVAppKeyStoreSource typedef
DVAppKeyStoreSource =
Future<DVAppKeyStore?> Function()
Where a store finds the application key store, or null when this platform has none.
A function rather than a store, so nothing asks the platform for a key until a sealed value is first written or read: a keyring probe at startup would be paid by every application, whether it keeps anything sealed or not.
Implementation
typedef DVAppKeyStoreSource = Future<DVAppKeyStore?> Function();