budget.setDeliveryMethod(BudgetBudgetDeliveryMethod.STANDARD);
campaign1.setBudget(budget);
campaign2.setBudget(budget);
// Create operations.
CampaignOperation operation1 = new CampaignOperation();
operation1.setOperand(campaign1);
operation1.setOperator(Operator.SET);
CampaignOperation operation2 = new CampaignOperation();
operation2.setOperand(campaign2);
operation2.setOperator(Operator.SET);
CampaignOperation[] operations = new CampaignOperation[] {operation1, operation2};
CampaignReturnValue result = campaignService.mutate(operations);
Campaign testCampaign1 = result.getValue()[0];
Campaign testCampaign2 = result.getValue()[1];