<PackageReference Include="System.Security.Permissions" Version="10.0.0-preview.7.25380.108" />

Site

Provides the Web site from which a code assembly originates as evidence for policy evaluation. This class cannot be inherited.
namespace System.Security.Policy { public sealed class Site : EvidenceBase, IIdentityPermissionFactory { public string Name => null; public Site(string name) { } public object Copy() { return null; } public static Site CreateFromUrl(string url) { return null; } public IPermission CreateIdentityPermission(Evidence evidence) { return null; } public override bool Equals(object o) { return base.Equals(o); } public override int GetHashCode() { return base.GetHashCode(); } public override string ToString() { return base.ToString(); } } }