AngleSharp by AngleSharp

<PackageReference Include="AngleSharp" Version="0.9.8.1" />

 DomHistoricalAttribute

public sealed class DomHistoricalAttribute : Attribute
This attribute decorates official DOM objects that should no longer be used and are therefore considered deprecated.
using System; namespace AngleSharp.Attributes { [AttributeUsage(AttributeTargets.Class | AttributeTargets.Struct | AttributeTargets.Method | AttributeTargets.Property | AttributeTargets.Field | AttributeTargets.Event | AttributeTargets.Interface | AttributeTargets.Delegate)] public sealed class DomHistoricalAttribute : Attribute { } }