'Show a message explaining that the user was blocked.
Arguments:
request (HttpRequest)
Keyword Arguments:
access_point (str): Either \'enrollment\' or \'courseware\',
indicating how the user is trying to access the restricted
content.
message_key (str): An identifier for which message to show.
See `embargo.messages` for more information.
Returns:
HttpResponse
Raises:
Http404: If no message is configured for the specified message key.'

def get(self, request, access_point=None, message_key=None):

    blocked_message = self._message(access_point, message_key)
    if (blocked_message is None):
        raise Http404
    return render_to_response(blocked_message.template, {})
