text: #ifndef SimG4Core_SensitiveDetector_SensitiveTkDetector_H
  #define SimG4Core_SensitiveDetector_SensitiveTkDetector_H
  
  #include "SimDataFormats/TrackingHit/interface/PSimHitContainer.h"
  #include "SimG4Core/SensitiveDetector/interface/SensitiveDetector.h"
  #include <string>
  
  class SensitiveTkDetector : public SensitiveDetector {
  public:
    explicit SensitiveTkDetector(const std::string& iname,
                                 const edm::EventSetup& es,
                                 const SensitiveDetectorCatalog& clg,
                                 edm::ParameterSet const& p)
        : SensitiveDetector(iname, es, clg, p, false) {}
    virtual void fillHits(edm::PSimHitContainer&, const std::string& hname) = 0;
  };
  
  #endif
  