def __init__(self, Key=None, **kwargs):
        if Key is None:
            Key = MultiFernet.generate_key()
            print(
                'No key supplied pesudo-random key generated : {}\nPlease update field with this key value before next run'
                .format(Key))

        EncryptedField._Tokens.append(Fernet(Key))
        Field.__init__(self, **kwargs)