<PackageReference Include="System.Security.Permissions" Version="11.0.0-preview.2.26159.112" />

System.Security.Policy.SiteMembershipCondition

Determines whether an assembly belongs to a code group by testing the site from which it originated. This class cannot be inherited.
namespace System.Security.Policy { public sealed class SiteMembershipCondition : ISecurityEncodable, ISecurityPolicyEncodable, IMembershipCondition { public string Site { get; set; } public SiteMembershipCondition(string site); public bool Check(Evidence evidence); public IMembershipCondition Copy(); public void FromXml(SecurityElement e); public void FromXml(SecurityElement e, PolicyLevel level); public SecurityElement ToXml(); public SecurityElement ToXml(PolicyLevel level); } }