const ret_hu_conv: OnionMessenger = new OnionMessenger(null, ret);
CommonBase.add_ref_from(ret_hu_conv, ret_hu_conv);
CommonBase.add_ref_from(ret_hu_conv, entropy_source);
const ret_hu_conv: OnionMessenger = new OnionMessenger(null, ret);
CommonBase.add_ref_from(ret_hu_conv, ret_hu_conv);
CommonBase.add_ref_from(ret_hu_conv, entropy_source);