InterfacesUnionTypeDefinitionNodeOn this pageUnionTypeDefinitionNode Index PropertiesdescriptiondirectiveskindlocnametypesProperties optionalreadonlydescriptiondescription?: StringValueNodeoptionalreadonlydirectivesdirectives?: readonly ConstDirectiveNode[]readonlykindkind: UnionTypeDefinitionoptionalreadonlylocloc?: Locationreadonlynamename: NameNodeoptionalreadonlytypestypes?: readonly NamedTypeNode[]