<PackageReference Include="System.Configuration.ConfigurationManager" Version="5.0.0" />

SettingsAttributeDictionary

Represents a collection of key/value pairs used to describe a configuration object as well as a SettingsProperty object.
using System.Collections; using System.Runtime.Serialization; namespace System.Configuration { public class SettingsAttributeDictionary : Hashtable { public SettingsAttributeDictionary() { } public SettingsAttributeDictionary(SettingsAttributeDictionary attributes) : base(attributes) { } protected SettingsAttributeDictionary(SerializationInfo serializationInfo, StreamingContext streamingContext) : base(serializationInfo, streamingContext) { throw new PlatformNotSupportedException(); } } }