public bool ContainsKey(TWeakKey1 weakKey1, TWeakKey2 weakKey2, TStrongKey strongKey)
 {
     return(_internalDictionary.ContainsKey(Stacktype.Create(weakKey1, weakKey2, strongKey)));
 }
 public bool ContainsKey(TStrongKey strongKey)
 {
     return(_internalDictionary.ContainsKey(new StrongKey <TStrongKey>(strongKey)));
 }
 public bool ContainsKey(TStrongKey strongKey)
 {
     return(_internalDictionary.ContainsKey(Stacktype.Create(strongKey)));
 }