<PackageReference Include="NUnit" Version="3.0.0-rc-3" />

IPropertyBag

public interface IPropertyBag : IXmlNodeBuilder
using System.Collections; using System.Collections.Generic; namespace NUnit.Framework.Interfaces { public interface IPropertyBag : IXmlNodeBuilder { IList this[string key] { get; set; } ICollection<string> Keys { get; } void Add(string key, object value); void Set(string key, object value); object Get(string key); bool ContainsKey(string key); } }