private void SetExpectedElements(BitFlagsGenerator expectedElements, int startIndex)
 {
     int bitCount = expectedElements.GetBitCount();
     for (int i = startIndex; i < bitCount; i++)
     {
         expectedElements.Store(i, true);
     }
 }
 private void ResetExpectedElements(BitFlagsGenerator expectedElements, int index)
 {
     expectedElements.Store(index, false);
 }