import * as t from 'io-ts' ; export const exceptionListItemType = t . keyof ( { simple : null } ) ; export const exceptionListItemTypeOrUndefined = t . union ( [ exceptionListItemType , t . undefined ] ) ; export type ExceptionListItemType = t . TypeOf < typeof exceptionListItemType > ; export type ExceptionListItemTypeOrUndefined = t . TypeOf < typeof exceptionListItemTypeOrUndefined > ;