Union

Unions are an abstract type where no common fields are declared. The possible types of a union are explicitly listed out inpossibleTypes. Types can be made parts of unions without modification of that type.

Fields

• kind must return __TypeKind.UNION .
• name must return a String.
• description may return a String or null .
• possibleTypes returns the list of types that can be represented within this union. They must be object types.
• All other fields must return null .