def METHOD_NAME(request_id):
    """
    Creates a notification about an approved request to join a project to the requester.
    :param request_id: Id of the request of the approved MembershipRequest
    :type request_id: int
    """
    request = MembershipRequests.objects.get(id=request_id)
    notification = Notification.objects.create(
        notification_type=Notification.PROJECT_JOIN_REQUEST_APPROVED,
        membership_request=request,
    )
    create_user_notification(request.user, notification)