Stashbox by Peter Csajtai

<PackageReference Include="Stashbox" Version="3.2.2-preview-580" />

.NET API 139,264 bytes

HashTree<TKey, TValue>

sealed class HashTree<TKey, TValue>

public HashTree()

public void Add(TKey key, TValue value, bool byRef = true)

public TValue GetOrDefault(TKey key, bool byRef = true)