Prisma

is there any way to make something like this in schema:
```
type ActionMember {
  id: ID! @unique
  person: Person! || User!
  side: String!
}
```

Something like OR operation

perhaps you want a union?
<https://github.com/facebook/graphql/blob/master/spec/Section%203%20--%20Type%20System.md#unions>

```
union PersonOrUser = Person | User

type ActionMember {
  id: ID! @unique
  person: PersonOrUser!
  side: String!
}
```

<@UAHCBKKFT> hmmm, i will try it, thanks :slightly_smiling_face:

<@UAHCBKKFT> nope, it doesn't work in prisma :disappointed:

  ActionMember
    :heavy_multiplication_x: The field `member` has the type `PersonOrUser` but there's no type or enum declaration with that name.

hmm... yes, so i see.
<https://github.com/prismagraphql/prisma/issues/165#issuecomment-365767647>

perhaps an `Interface` then?.... which both Person and User implement?