SiiNunit
{
sign_template : _nameless.202.0cfa.6480 {
 template_name: tunnel
 model_name: de_43
 stand_model_name: ""
 traffic_rule: null
 boards: 1
 boards[0]: _nameless.202.0769.5b20
 items: 0
 dynamic_attributes: 0
}

sign_template_board_binding : _nameless.202.0769.5b20 {
 area_name: ml2
 linked_board: sign_board.tunnel_1
}

}
