```swift
func fetchDevices() {
Amplify.Auth.fetchDevices() { result in
switch result {
case .success(let fetchDeviceResult):
for device in fetchDeviceResult {
print(device.id)
}
case .failure(let error):
print("Fetch devices failed with error \(error)")
}
}
}
```
```swift
func fetchDevices() -> AnyCancellable {
Amplify.Auth.fetchDevices()
.resultPublisher
.sink {
if case let .failure(authError) = $0 {
print("Fetch devices failed with error \(authError)")
}
}
receiveValue: { fetchDeviceResult in
for device in fetchDeviceResult {
print(device.id)
}
}
}
```