AngleSharp by Florian Rappl

<PackageReference Include="AngleSharp" Version="0.8.5" />

 XmlPIToken

sealed class XmlPIToken : XmlToken
The processing instruction token that defines a processing instruction.
namespace AngleSharp.Parser.Xml { internal sealed class XmlPIToken : XmlToken { public string Target { get; set; } public string Content { get; set; } public XmlPIToken(TextPosition position) : base(XmlTokenType.ProcessingInstruction, position) { Target = string.Empty; Content = string.Empty; } } }