# TIKeychainUtils Set of helpers for Keychain classes. Bunch of CodableBackingStore from TIFoundationUtils and KeychainAccess. Implement #### @propertyWrapper example ```swift extension StorageKey { static var userProfileKey: StorageKey { .init(rawValue: "userProfileKey") } } extension Bundle { var bundleId: String { Bundle.main.bundleIdentifier ?? .empty } } extension Keychain { static var defaultKeychain: Keychain { .init(service: Bundle.main.bundleId) } } final class ViewModel { @KeychainCodableBackingStore(key: .userProfileKey, codableKeyValueStorage: .defaultKeychain) private(set) var profile: UserProfile? func updateProfile(newProfile: UserProfile?) { profile = newProfile } } ```