docs: def permission_required(perm):
      """
      A json pendant to permission_required. Will return a 401 response if
      the user is not allowed. The body of the response will be the following json
      data::
  
          {
              "status": 401,
              "message": "Unauthorized",
              "data": {}
          }
  
      Example::
  
          import jason
  
          @jason.permission_required("my_perm")
          def my_view(request):
              ...
      """
      def _(f):
          def __(request, *args, **kwargs):
              if request.user.has_perm(perm):
                  return f(request, *args, **kwargs)
              else:
                  return response({}, 401, 'Unauthorized')
          return __
      return _