export declare enum OneOfErrorCode {
    NOT_ONE_OF = "NOT_ONE_OF",
}
export declare function checkOneOf<T>(mixed: any, arr: T[]): undefined | OneOfErrorCode;
export declare enum NotOneOfErrorCode {
    IS_ONE_OF = "IS_ONE_OF",
}
export declare function checkNotOneOf<T, NotT extends T>(mixed: any, arr: NotT[]): undefined | NotOneOfErrorCode;