<PackageReference Include="System.Security.Permissions" Version="10.0.2" />

System.Xaml.Permissions.XamlLoadPermission

Declares permissions for loading types from assemblies that are used by a XAML reader or writer.
namespace System.Xaml.Permissions { public sealed class XamlLoadPermission : CodeAccessPermission, IUnrestrictedPermission { public IList<XamlAccessLevel> AllowedAccess { get; } public XamlLoadPermission(PermissionState state); public XamlLoadPermission(XamlAccessLevel allowedAccess); public XamlLoadPermission(IEnumerable<XamlAccessLevel> allowedAccess); public bool Includes(XamlAccessLevel requestedAccess); public bool IsUnrestricted(); } }