#ifndef retrieveHitTruthInfo
#define retrieveHitTruthInfo
#include <IHit.hxx>
#include <IDigit.hxx>
#include <IG4VHit.hxx>

namespace HitTruthInfo {

  /// Return the G4 hits associated with a IHit.
  /// This method is meant to check the different ways in which the 
  /// truth information can be attached to a IHit.  In particular, 
  /// the method does following 
  ///   a) checks IHit has a IMCDigit that is attached to it.
  ///   b) checks if IHit is actually IMCHit.
  /// If either is true, then method returns g4 contributors;
  /// otherwise, returns empty vector.
  std::vector<COMET::IG4VHit*> GetHitTruthInfo(COMET::IHandle<COMET::IHit> hit);

}

#endif