<PackageReference Include="Newtonsoft.Json" Version="8.0.1" />

XmlDeclarationWrapper

using System.Xml; namespace Newtonsoft.Json.Converters { internal class XmlDeclarationWrapper : XmlNodeWrapper, IXmlDeclaration, IXmlNode { private readonly XmlDeclaration _declaration; public string Version => _declaration.Version; public string Encoding { get { return _declaration.Encoding; } set { _declaration.Encoding = value; } } public string Standalone { get { return _declaration.Standalone; } set { _declaration.Standalone = value; } } public XmlDeclarationWrapper(XmlDeclaration declaration) : base(declaration) { _declaration = declaration; } } }