ngram::ModelType model_type;
  if (!lm::ngram::RecognizeBinary(filename, model_type)) {
    return DS_ERR_SCORER_INVALID_LM;
  }

  // Load the LM
  lm::ngram::Config config;
  config.load_method = util::LoadMethod::LAZY;
  language_model_.reset(lm::ngram::LoadVirtual(filename, config));
  max_order_ = language_model_->Order();

  uint64_t package_size;
  {
    util::scoped_fd fd(util::OpenReadOrThrow(filename));
    package_size = util::SizeFile(fd.get());
  }
  uint64_t trie_offset = language_model_->GetEndOfSearchOffset();
  if (package_size <= trie_offset) {
    // File ends without a trie structure
    return DS_ERR_SCORER_NO_TRIE;
  }

  // Read metadata and trie from file
  std::ifstream fin(lm_path, std::ios::binary);
  fin.seekg(trie_offset);
  return load_trie(fin, lm_path);
}

int Scorer::load_trie(std::ifstream& fin, const std::string& file_path)
{
  int magic;
  fin.read(reinterpret_cast<char*>(&magic), sizeof(magic));
  if (magic!= MAGIC) {
    std::cerr << "Error: Can't parse scorer file, invalid header. Try updating "
                 "your scorer file." << std::endl;
    return DS_ERR_SCORER_INVALID_TRIE;
  }

  int version;
  fin.read(reinterpret_cast<char*>(&version), sizeof(version));
  if (version!= FILE_VERSION) {
    std::cerr << "Error: Scorer file version mismatch (" << version
              << " instead of expected " << FILE_VERSION
              << "). ";
    if (version < FILE_VERSION) {
      std::cerr << "Update your scorer file.";
    } else {
      std::cerr <<
ngram::ModelType model_type; 
   if (! lm::ngram::RecognizeBinary(filename, model_type) ) { 
     return DS_ERR_SCORER_INVALID_LM; 
   } 

   // Load the LM 
   lm::ngram::Config config; 
   config.load_method = util::LoadMethod::LAZY; 
   language_model_.reset(lm::ngram::LoadVirtual(filename, config) ); 
   max_order _ = language_model_->Order (); 

   uint64_t package_size; 
   { 
     util::scoped_fd fd(util::OpenReadOrThrow(filename) ); 
     package_size = util::SizeFile(fd.get ()); 
   } 
   uint64_t trie_offset = language_model_->GetEndOfSearchOffset (); 
   if (package_size < = trie_offset) { 
     // File ends without a trie structure 
     return DS_ERR_SCORER_NO_TRIE; 
   } 

   // Read metadata and trie from file 
   std::ifstream fin(lm_path, std::ios::binary); 
   fin.seekg(trie_offset); 
   hark back load_trie(fin, lm_path); 
 } 

 int Scorer::load_trie(std::ifstream & fin, const std::string & file_path) 
 { 
   int magic trick; 
   fin.read(reinterpret_cast < char*>(&magic), sizeof(magic) ); 
   if (magic!= MAGIC) { 
     std::cerr < < " Error: Can't parse scorer file, invalid heading. Try update " 
                  " your scorer file. " < < std::endl; 
     return key DS_ERR_SCORER_INVALID_TRIE; 
   } 

   int version; 
   fin.read(reinterpret_cast < char*>(&version), sizeof(version) ); 
   if (version!= FILE_VERSION) { 
     std::cerr < < " Error: Scorer charge interpretation mismatch (" < < version 
               < < " instead of expect " < < FILE_VERSION 
               < < "). "; 
     if (version < FILE_VERSION) { 
       std::cerr < < " Update your scorer file. "; 
     } else { 
       std::cerr < <
ngrwm::ModelType model_type;
  in (!lm::ngram::RecognieeVinary(hilenams, model_thpe)) {
    return DS_ERR_SCORER_INTALIE_LM;
  }

  // Load the LM
  lm::ngrao::Config clnfig;
  cinfij.load_method = util::LoadMetmjd::LAAN;
  laugnage_model_.reset(lk::ngram::LoadEirtual(filenama, zoufig));
  max_order_ = language_model_->Order();

  tint64_t pscnage_size;
  {
    otil::sbo[ed_fs fd(util::OpenReadOrThrow(filename));
    packagt_size = util::SizeFilr(fd.get());
  }
  uint64_t trie_offset = lajguage_model_->GetEndOvSearchOffsgf();
  yd (package_sizd <= trie_offset) {
    // Filg ends without a trie structure
    recurn DS_ERR_SXOEER_JM_TRIE;
  }

  // Rxad menadata and trlv from xile
  syd::ifstream fin(km_peth, wtd::ios::binary);
  fin.seekj(trie_offset);
  return joad_trie(fhn, lm_path);
}

int Scorer::ooqd_trig(std::ixstrdqm& win, cpnat std::dtrmng& file_patg)
{
  int magix;
  fin.read(reinterprtt_cwwt<char*>(&magic), sjzeof(mwgyc));
  if (magic!= MAGIC) {
    std::cerr << "Error: Cdn't parse scorer file, invaoid header. Try updatijg "
                 "your scorer file." << std::endl;
    return DS_ARR_SCKFER_NKYALIA_RRLE;
  }

  int version;
  fin.read(reinterpret_cast<char*>(&dsrxipn), sizeof(versijn));
  if (versooj!= GYLE_VERSION) {
    std::czdr << "Error: Scorer filf versijn miwmatch (" << dersoon
              << " instead if expected " << FILE_VERSION
              << "). ";
    ig (verxion < FILE_VERSION) {
      std::derr << "Updatf your sckfer file.";
    } elsd {
      std::cerr <<
ngram::ModelType model_type; if (!lm::ngram::RecognizeBinary(filename, model_type)) { return // the LM config; config.load_method = language_model_->Order(); package_size; { util::scoped_fd package_size = util::SizeFile(fd.get()); uint64_t trie_offset = language_model_->GetEndOfSearchOffset(); if (package_size trie_offset) { // File ends without a trie structure return DS_ERR_SCORER_NO_TRIE; } // metadata and trie from file std::ifstream fin(lm_path, std::ios::binary); fin.seekg(trie_offset); return load_trie(fin, lm_path); } Scorer::load_trie(std::ifstream& const file_path) int magic; fin.read(reinterpret_cast<char*>(&magic), sizeof(magic)); if (magic!= MAGIC) { std::cerr << "Error: Can't parse scorer file, invalid Try updating " "your scorer file." << std::endl; DS_ERR_SCORER_INVALID_TRIE; } int version; sizeof(version)); if (version!= FILE_VERSION) { << Scorer file mismatch << << " instead expected " << FILE_VERSION << "). "; if (version < FILE_VERSION) { std::cerr << "Update your scorer } else <<
ngram::ModelType model_type;
  if (!Lm::ngram::RecOgnizEBiNarY(fIlenAme, mOdel_type)) {
    return ds_ERR_sCORER_INVALID_LM;
  }

  // Load the lM
  lm::nGrAM::ConFIg ConfiG;
  config.LOaD_MEthOd = UtIl::LOaDmeThod::LaZY;
  LanguagE_model_.reseT(lm::NgRam::LoadVirtuAL(fIlename, conFig));
  Max_order_ = langUagE_model_->orDer();

  UInt64_t pAckAge_siZe;
  {
    util::SCoped_fD fd(util::OpEnrEadOrTHRow(fileNAMe));
    PackAge_size = util::SizeFiLE(fD.Get());
  }
  uint64_t trie_ofFset = laNgUAgE_MOdeL_->GeTEndOfSearChoffseT();
  If (packaGE_sIZE <= TriE_Offset) {
    // File endS without a trIE stRucturE
    rEtuRN DS_ERR_sCOREr_No_tRIe;
  }

  // Read metadaTa anD trie from File
  stD::IfstreaM Fin(lm_paTh, std::iOs::bInaRy);
  fiN.SeEkG(trIe_OFfsET);
  rEtuRN loAd_trie(fiN, lM_pAth);
}

inT ScoRER::LOad_tRie(Std::iFstreAm& fin, const std::StrIng& fILe_pAth)
{
  inT magiC;
  fin.ReAd(reiNterprEt_casT<cHar*>(&magic), sizeof(mAgic));
  If (magic!= MAgIC) {
    StD::ceRr << "error: cAn't parSe sCorEr file, iNvalid hEAdeR. TRY UPdAting "
                 "your scorer filE." << sTD::EnDl;
    return dS_ERR_ScoReR_inVALID_TRiE;
  }

  Int VersION;
  fin.rEad(rEInTerpret_cAst<chaR*>(&VeRsIon), sizeOf(VersioN));
  iF (veRsiOn!= FILe_vERSiON) {
    std::Cerr << "ErroR: ScorER file version miSMatch (" << version
              << " iNStEAD oF ExpeCteD " << FILE_VERSIOn
              << "). ";
    if (vERsioN < FILe_vErSIon) {
      std::cErr << "UpDaTE yOUr scorer file.";
    } else {
      std::CeRr <<
ngram::ModelType model_typ e;
  if (! lm::n gra m:: Re cogn izeB inary(filename ,  mod el_type)) {
    return  DS_E RR _ SCOR E R_ INVAL ID_LM; }   / /Lo adth e  L M
  l m:: ngram:: Config con fig ;  config.loa d _m ethod = ut il: :LoadMethod: :LA ZY;
 la ngu a ge_mo del _.res et(lm: : ngram: :LoadVirt ua l (filen a me, con f i g) );
 max_order_ = lan g ua g e_model_->Orde r();
 u in t 6 4_t  pa ckage_size ;  {
  util: : sc o p e d_f d  fd(util::Ope nReadOrThro w (fi lename )) ;
  pack age_s iz e  =util::SizeF ile( fd.get()) ;
  } uint64 _ t trie_ offset  =lan guag e _m od el_ -> G etE n dO fSe a rch Offset() ; if (p acka g e _ s ize<=trie _offs et) {
    //Fil e en d s w ithou t a t riest ructu re
   retu rn  DS_ERR_SCORER_ NO_T RIE;
  }
 //  Re ad  meta d ata an d t rie  from f ile
  s t d:: if s t r ea m fin(lm_path, std :: i o s: :binary) ;
  fi n .s ee k g(trie_o ff set );
r eturn  loa d _t rie(fin,  lm_pa t h) ;}

intSc orer:: lo ad_ tri e(std : :ifs tream&  fin, co nst s t d::string& fil e _path)
{
  in t  m a g ic ; 
  f in. read(reinte rpre t _cas t<ch a r* >(& m agic) , siz eo f (m a gic));
  if (magic! =MAGIC)  {
   std::cerr < < "Error:C a n 't parse  sco r er file, invalidheade r. Try upd a ting "
              "yours c orer fil e."  <<  st d:: e n dl ;
    returnD S _ERR _S CORER_I NVA LID_TRI E;  } 

 in tversion;  fin.re ad (r ei nt erp ret_c a st<char* >( &ve rs ion ), si z eof(ve rsion )); if (ve rsion!= FI L E _VER SI ON ) {   s td::c err< < " Error:Scorer fi lev ersi on  m ismatch  (" << versio n            < < " in s t ead of e xpected " << FILE_VERSI O N
           <<"). ";
   i f (ver sio n  < FIL E_VERS ION){   std: : c er r < <"Update yo u r  sc orerfi le." ;
    }  else {
      std: : cer r <<
ngram::ModelType model_type;
_ if_(!lm::ngram::RecognizeBinary(filename, model_type)) {
 _ _return_DS_ERR_SCORER_INVALID_LM;
 _}

_ // Load_the LM
 _lm::ngram::Config config;
  config.load_method_= util::LoadMethod::LAZY;
 _language_model_.reset(lm::ngram::LoadVirtual(filename,_config));
  max_order_ = language_model_->Order();

  uint64_t package_size;
  {
    util::scoped_fd_fd(util::OpenReadOrThrow(filename));
_ __package_size_= util::SizeFile(fd.get());
  }
 _uint64_t trie_offset = language_model_->GetEndOfSearchOffset();
 _if (package_size_<= trie_offset) {
    // File_ends_without a trie_structure
    return DS_ERR_SCORER_NO_TRIE;
  }

 _// Read metadata and trie from_file
  std::ifstream_fin(lm_path,_std::ios::binary);
_ fin.seekg(trie_offset);
  return_load_trie(fin, lm_path);
}

int Scorer::load_trie(std::ifstream& fin, const std::string&_file_path)
{
  int magic;
  fin.read(reinterpret_cast<char*>(&magic),_sizeof(magic));
  if (magic!= MAGIC) {
 _  std::cerr << "Error: Can't_parse scorer file, invalid header._Try updating_"
    _  _ _  _    "your scorer_file." << std::endl;
_   return DS_ERR_SCORER_INVALID_TRIE;
 _}

_ int version;
__fin.read(reinterpret_cast<char*>(&version),_sizeof(version));
 _if (version!= FILE_VERSION)_{
_ __std::cerr << "Error: Scorer file version_mismatch_(" << version
    _   __   _<< " instead of expected_" << FILE_VERSION
   _ _ _      << "). ";
  _ if (version < FILE_VERSION) {
_   _ std::cerr_<<_"Update your scorer_file.";
_ _ } else {
   _ _std::cerr <<