public override int GetHashCode()
        {
            int hash = 1;

            if (Date.Length != 0)
            {
                hash ^= Date.GetHashCode();
            }
            if (CityOfBirth.Length != 0)
            {
                hash ^= CityOfBirth.GetHashCode();
            }
            if (CountryOfBirth.Length != 0)
            {
                hash ^= CountryOfBirth.GetHashCode();
            }
            if (_unknownFields != null)
            {
                hash ^= _unknownFields.GetHashCode();
            }
            return(hash);
        }