AWS Amplify Data Modeling - is there an option for enumerations?

Are enumerations available in AWS Amplify Studio data modeling? Below is a simplified example of something I am trying to do.

enum Example {
     optionA(char)
     optionB(AnotherEnum)
}

enum AnotherEnum {
...

My workaround at the moment is to make the Example from above a custom type that contains optional fields pointing to a String or an enum AnotherEnum. It seems to be working, so it is not a critical issue, but curious to know any workarounds.