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