String (@NotNull OptionalToIfContext context, @NotNull List<Operation> operations) { List<OperationRecord> records = createRecords(operations); allOperations(records).forEach(r -> r.myOperation.preprocessVariables(r.myInVar, r.myOutVar, context)); allOperations(records).map(r -> r.myOutVar).distinct().filter(v -> !v.isRegistered()).forEach(v -> v.register(context)); return wrapCode(context, records, ""); }