Interface IvemIdSvc

interface IvemIdSvc {
    compare(left: IvemId, right: IvemId): ComparisonResult;
    create(code: string, exchange: Exchange): IvemId;
    isEqual(left: IvemId, right: IvemId): boolean;
    isUndefinableEqual(left: IvemId, right: IvemId): boolean;
}