interface Sensor {
  in void activate();
  out void activated();
  behaviour { 
    on activate: {}
    on inevitable: activated;
  }
}
 
interface Test {
  in void test();
  behaviour { 
    on test: {}
  }
}
 
component SensorComp {
  provides Sensor sensor1;
  provides Test test;
  requires Sensor sensor2;
  behaviour {
    blocking on sensor1.activate(): sensor2.activate();
    on sensor2.activated(): { sensor1.activated(); sensor1.reply(); }
    on test.test(): {}
  }
}