// argument to a function.
std::pair<StringPiece, bool> AttrTypeName(StringPiece attr_type);

StringPiece ListElementTypeName(StringPiece attr_type);

bool IsCPPKeyword(StringPiece name);

string AvoidCPPKeywords(StringPiece name);

void InferArgAttributes(const OpDef::ArgDef& arg,
                        std::unordered_map<string, string>* inferred_attrs);

  if (entry == attr_list_type_map->end()) {
    LOG(FATAL) << "Unsupported or non-list Attr type: " << attr_type;
    return "";
  }
  return entry->second;
}

bool IsCPPKeyword(StringPiece name) {
  static const absl::flat_hash_set<StringPiece, StringPieceHasher>*
      // Keywords obtained from http://en.cppreference.com/w/cpp/keyword