public KeyAsyncEnumerator(FasterDictionary <TKey, TValue> fasterDictionary)
 {
     _fasterDictionary = fasterDictionary;
     StartTask         = _fasterDictionary.AquireIterator();
 }
 public KeyIterator(FasterDictionary <TKey, TValue> fasterDictionary)
 {
     _fasterDictionary = fasterDictionary;
 }