docs: def display_console(self, request):
          """Display a standalone shell."""
          if 0 not in self.frames:
              if self.console_init_func is None:
                  ns = {}
              else:
                  ns = dict(self.console_init_func())
              ns.setdefault("app", self.app)
              self.frames[0] = _ConsoleFrame(ns)
          is_trusted = bool(self.check_pin_trust(request.environ))
          return Response(
              render_console_html(secret=self.secret, evalex_trusted=is_trusted),
              mimetype="text/html",
          )