apollo-compiler 1.31.1

query SelectionOfInterface {
  pet1
  pet2
  pet3
  pet4
  pet5
  pet6
}

type Query {
  pet1: Pet,
  pet2: Pet!,
  pet3: [Pet],
  pet4: [Pet!],
  pet5: [Pet]!,
  pet6: [Pet!]!,
}

interface Pet {
  id: String,
}