Wolf script to create processor buggy

This is the invoked script command

wolf_create.sh -t processor -n apriltag -b tracker_landmark

These lines are added at the end of the generated processor_tracker_landmark_apriltag.cpp

LandmarkMatchMap& ProcessorTrackerLandmarkApriltag::_feature_landmark_correspondences)(LandmarkMatchMap& _feature_landmark_correspondences)
{
  std::cout << "033[1;33m [WARN]:033[0m ProcessorTrackerLandmarkApriltag::_feature_landmark_correspondences) is empty." << std::endl;
  LandmarkMatchMap& return_var{}; //TODO: fill this variable
  return return_var;
}