const err_hu_conv: PaymentSendFailure = PaymentSendFailure.constr_from_ptr(err);
CommonBase.add_ref_from(err_hu_conv, this);
this.err = err_hu_conv;
const err_hu_conv: PaymentSendFailure = PaymentSendFailure.constr_from_ptr(err);
CommonBase.add_ref_from(err_hu_conv, this);
this.err = err_hu_conv;