schema {
    query: RootSchemaQuery
}
directive @filter(op: String!, value: [String!]) repeatable on FIELD | INLINE_FRAGMENT
directive @tag(name: String) on FIELD
directive @output(name: String) on FIELD
directive @optional on FIELD
directive @recurse(depth: Int!) on FIELD
directive @fold on FIELD
directive @transform(op: String!) on FIELD

type RootSchemaQuery {
    MainType: MainType
    NonNullMainType: MainType!
    List: [MainType]
    NonNullList: [MainType]!
    NonNullListAndType: [MainType!]!
}

type MainType {
    integer: Int
    nonNullInteger: Int!
    float: Float
    nonNullFloat: Float!
    string: String
    nonNullString: String!
    bool: Boolean
    nonNullBool: Boolean!

    intList: [Int]
    nonNullIntList: [Int!]
    intNonNullList: [Int]!
    nonNullIntAndList: [Int!]!

    neighbor: MainType
    nonNullNeighbor: MainType!
    neighborList: [MainType]
    neighborNonNullList: [MainType]!
    nonNullNeighborAndList: [MainType!]!
}