// See www.openfst.org for extensive documentation on this weighted
  // finite-state transducer library.
  
  #ifndef FST_SCRIPT_REVERSE_H_
  #define FST_SCRIPT_REVERSE_H_
  
  #include <tuple>
  
  #include <fst/reverse.h>
  #include <fst/script/fst-class.h>
  
  namespace fst {
  namespace script {
  
  using ReverseArgs = std::tuple<const FstClass &, MutableFstClass *, bool>;
  
  template <class Arc>
  void Reverse(ReverseArgs *args) {
    const Fst<Arc> &ifst = *(std::get<0>(*args).GetFst<Arc>());
    MutableFst<Arc> *ofst = std::get<1>(*args)->GetMutableFst<Arc>();
    Reverse(ifst, ofst, std::get<2>(*args));
  }
  
  void Reverse(const FstClass &ifst, MutableFstClass *ofst,
               bool require_superinitial = true);
  
  }  // namespace script
  }  // namespace fst
  
  #endif  // FST_SCRIPT_REVERSE_H_