<PackageReference Include="NUnit" Version="3.0.0-rc-2" />

AttributeDictionary

public class AttributeDictionary : Dictionary<string, string>
Class used to represent the attributes of a node
using System.Collections.Generic; namespace NUnit.Framework.Interfaces { public class AttributeDictionary : Dictionary<string, string> { public new string this[string key] { get { if (TryGetValue(key, out string value)) return value; return null; } } } }