#[derive(Validate)] of enum produces unparsable tokens

[Youx]

This error happens if an enum unit variant is placed before an enum struct/tuple variant:

Reproduced with:

#[derive(serde_valid::Validate)]
enum Works {
    VariantB(),
    VariantA,
}

#[derive(serde_valid::Validate)]
enum Fails {
    VariantA,
    VariantB(),
}

[yassun7010]

I was late in noticing the issue.

Thanks for the report 👍 I have fixed it.