message: Correctly set KeySetStore.KeySet properties.
diff: encryptionKey: { value: encryptionKey, writable: false, configurable: false },
  hmacKey: { value: hmacKey, writable: false, configurable: false },
  wrappingKey: { value: wrappingKey, writable: false, configurable: false },
  - }
  + };
  + Object.defineProperties(this, props);
  },
  });
  