AngleSharp by Florian Rappl

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

.NET API 1,113,600 bytes

 HtmlTemplateElement

Represents the template element.
public IDocumentFragment Content { get; }

Gets the contents of this HTML template.

public HtmlTemplateElement(Document owner, string prefix = null)

public void PopulateFragment()

Moves the children of the template element to the content.