type Hello @key(fields: "name") {
    name: String!
    secondary: String!
}

type World @key(fields: " foo   ") @key(fields: "bar") {
    foo: String!
    bar: Int!
}

directive @entityResolver(multi: Boolean) on OBJECT

type MultiHelloMultiKey @key(fields: "name") @key(fields:"key2") @entityResolver(multi: true) {
    name: String!
    key2: String!
}

extend type ExternalExtension @key(fields: "  upc    ") {
    upc: String! @external
    reviews: [World]
}

extend type NestedKey @key(fields: "id hello { name}") {
    id: String! @external
    hello: Hello
}

extend type MoreNesting @key(fields: "id") {
    id: String! @external
    world: World! @external
}

extend type VeryNestedKey
    @key(
        fields: "id hello { name} world {foo } world{bar}  more { world { foo }}"
    ) {
    id: String! @external
    hello: Hello
    world: World
    nested: NestedKey @requires(fields: "id hello {secondary }")
    more: MoreNesting
}

type Query {
    hello: Hello!
    world: World!
}