title: Calling `getBudgetId` in the Google Adwords API from Scala
body: <p>In Google Adwords API, this is the Java code to get the budget id:</p>
  
  <pre><code>Long budgetId = budgetService.mutate(new BudgetOperation[] {budgetOperation}).getValue(0).getBudgetId();
  </code></pre>
  
  <p>I need to convert this to Scala code as I am working with Google AdWords API in Scala.</p>