Prisma

hey! we're having an issue implementing a mutation on a one-to-many relationship: 
```
// mutation
createForm(name: String!, description: String!, fields: [Field!]!): Form!

// schema
type Form {
  id: ID! @unique
  author: User!
  name: String!
  description: String!
  createdAt: DateTime!
  updatedAt: DateTime!
  fields: [Field!]!
}

type Field {
  id: ID! @unique
  containingForm: Form!
  name: String!
  value: String!
}
```

giving an error:
`The type of Mutation.createForm(fields:) must be Input Type but got: [Field!]!.`

<@U8X0S7NGG> I think it's because your mutation needs to use an `input` instead of a `type`

`type` only works as a return type; if you want to specify input arguments, you have to use `input Field { ... }`