  static NAN_METHOD(Free) {
    ChaChaPolyCipher* obj = ObjectWrap::Unwrap<ChaChaPolyCipher>(info.Holder());
    obj->clear();
  }
  static NAN_METHOD(Free) {
    ChaChaPolyCipher* obj = ObjectWrap::Unwrap<ChaChaPolyCipher>(info.Holder());
    obj->clear();
  }