Let's add some code to create a simple `wpkh` descriptor object by using the `BIP84` template. This template will create a descriptor in the format `wpkh(key/84'/{0,1}'/0'/{0,1}/*)`
-This descriptor will create receive (`KeyChainKind.External`) and change descriptor (` KeyChainKind.Internal`) for a specified mnemonic.
+This descriptor will create receive (`KeychainKind.External`) and change descriptor (` KeycChainKind.Internal`) for a specified mnemonic.
```dart
Future<List<Descriptor>> getDescriptors(String mnemonic) async {