protected override Optional <T> TryGet(T item)
{
var ret = Root.FindKvp(item);
return(ret.IsSome ? ret.Value.Key.AsSome() : Optional.None);
}
protected override Optional <KeyValuePair <TKey, TValue> > TryGetKvp(TKey key)
{
return(Root.FindKvp(key));
}
public Optional <KeyValuePair <TKey, TValue> > TryGetKvp(TKey key)
{
return(_inner.FindKvp(key));
}