<PackageReference Include="System.Security.Permissions" Version="10.0.4" />

System.Security.Policy.PermissionRequestEvidence

public sealed class PermissionRequestEvidence : EvidenceBase
Defines evidence that represents permission requests. This class cannot be inherited.
namespace System.Security.Policy { public sealed class PermissionRequestEvidence : EvidenceBase { public PermissionSet DeniedPermissions { get; } public PermissionSet OptionalPermissions { get; } public PermissionSet RequestedPermissions { get; } public PermissionRequestEvidence(PermissionSet request, PermissionSet optional, PermissionSet denied); public PermissionRequestEvidence Copy(); } }