+ long payment_hash = obj.payment_hash;
+ org.ldk.structs.Option_PaymentHashZ payment_hash_hu_conv = org.ldk.structs.Option_PaymentHashZ.constr_from_ptr(payment_hash);
+ if (payment_hash_hu_conv != null) { payment_hash_hu_conv.ptrs_to.add(this); };
+ this.payment_hash = payment_hash_hu_conv;