<PackageReference Include="System.Configuration.ConfigurationManager" Version="10.0.10" />

System.Configuration.SettingsContext

public class SettingsContext : Hashtable
Provides contextual information that the provider can use when persisting settings.
namespace System.Configuration { } namespace System.Configuration { public class SettingsContext : Hashtable { public SettingsContext(); protected SettingsContext(SerializationInfo serializationInfo, StreamingContext streamingContext); } }