public virtual int _GetUniqueIdentifier() { var hashCode = 399326290; hashCode = hashCode * -1521134295 + (Id?.GetHashCode() ?? 0); hashCode = hashCode * -1521134295 + (FreeSpace?.GetHashCode() ?? 0); hashCode = hashCode * -1521134295 + (Time?.GetHashCode() ?? 0); hashCode = hashCode * -1521134295 + (Distance?.GetHashCode() ?? 0); hashCode = hashCode * -1521134295 + (CurrentLoad?.GetHashCode() ?? 0); return(hashCode); }