}
  std::string tfr_raw_text;
  for (const auto& file : files) {
    string fullpath = io::JoinPath(composite_mlir_dir, file);
    if (env->MatchPath(fullpath, io::JoinPath(composite_mlir_dir, "*.mlir"))) {
      std::string text;
      TF_RETURN_IF_ERROR(ReadFileToString(env, fullpath, &text));
      tfr_raw_text.append(text);
    }
  }