swift - Firebase Storage downloadURL()' is deprecated: Use `StorageReference.downloadURLWithCompletion()

Question

Normally I am updating image with url to firebase storage with:

Storage.storage().reference().child("profile_images").child(fileName).putData(uploadData, metadata: nil) {
    [weak self] (metadata, err) in
    guard let strongSelf = self else {
        return
    }

    if let err = err {
        print(err)
    }

    guard let profileImageUrl = metadata?.downloadURL()?.absoluteString else {
        return
    }

    ProfilePhotoHandler.Instance.addPhotoUrl(withUrl: profileImageUrl)
}

But right now Xcode 9.3 show warning:

downloadURL()' is deprecated: Use `StorageReference.downloadURLWithCompletion()

Firebase docs still shows old way. Does anyone can help me how to handle it now?

Answer 1

Waitting for answers