InterfacesInterfaceTypeExtensionNodeOn this pageInterfaceTypeExtensionNode Index PropertiesdirectivesfieldsinterfaceskindlocnameProperties optionalreadonlydirectivesdirectives?: readonly ConstDirectiveNode[]optionalreadonlyfieldsfields?: readonly FieldDefinitionNode[]optionalreadonlyinterfacesinterfaces?: readonly NamedTypeNode[]readonlykindkind: InterfaceTypeExtensionoptionalreadonlylocloc?: Locationreadonlynamename: NameNode