query ExampleQuery {
  topProducts(
    first: $undefinedVariable
    filter: {
      offset: $offset
      keywords: ["a", $keyword]
    }
  ) {
    name
  }
}

input Filter {
  keywords: [String!]
  offset: Int
  limit: Int
}

type Query {
  topProducts(first: Int, filter: Filter): Product,
}

type Product {
  name: String
}