namespace System
{
    [ClassInterface(ClassInterfaceType.None)]
    [ComDefaultInterface(typeof(_AppDomain))]
    [ComVisible(true)]
    public sealed class AppDomain : MarshalByRefObject, _AppDomain, IEvidenceFactory
    {
        [Obsolete("Assembly level declarative security is obsolete and is no longer enforced by the CLR by default.  Please see http://go.microsoft.com/fwlink/?LinkId=155570 for more information.")]
        [SecuritySafeCritical]
        public AssemblyBuilder DefineDynamicAssembly(AssemblyName name, AssemblyBuilderAccess access, string dir, Evidence evidence, PermissionSet requiredPermissions, PermissionSet optionalPermissions, PermissionSet refusedPermissions);
    }
}