When using an enum as `name` it works fine by adding `//@ts-ignore` but the interface didnt allow that. 

```
@ValidateNested()
  @type(() => MyDto, {
    discriminator: {
      property: 'type',
      subTypes: [
        {value: MySubDto1, name: MyEnum.Something},
        {value: MySubDto2, name: MyEnum.SomethingOther},
      ],
    },
    keepDiscriminatorProperty: true,
  })
  cupData: MySubDto1 | MySubDto2;
```