internal void AppendVCardStringTo(VcfSerializer serializer)
{
StringBuilder builder = serializer.Builder;
if (Sex.HasValue)
{
_ = builder.Append(Sex.ToVcfString());
}
if (GenderIdentity != null)
{
StringBuilder worker = serializer.Worker;
_ = worker.Clear().Append(GenderIdentity).Mask(serializer.Version);
_ = builder.Append(';').Append(worker);
}
}