Is it possible to make union with primitives?

[iKethavel]

Hello!

My data model has next prop:
roll!: number[] | number[][]
What is a proper way to describe it?

I've tried next:
@Field(() => [Number | [Number]])

and

const RollUnion = createUnionType({
  name: 'RollUnion', 
  types: [Number, Number[]] as const,
})

  @Field(() => [RollUnion])
  roll!: number[] | number[][]

Nothing works

What am I doing wrong?

[MichalLytek]

It's not permitted by GraphQL spec.