public EtlStatsScope(EtlRunStats stats, bool start = true) : base(stats, start) { }
protected override EtlStatsScope OpenNewScope(EtlRunStats stats, bool start) { return(new EtlStatsScope(stats, start)); }
protected AbstractEtlStatsScope(EtlRunStats stats, bool start = true) : base(stats, start) { _stats = stats; }