title: What is the best way to remove warning?
body: <p>I want to save data in core data. What is the best way to remove this warning?     </p>
  
  <pre><code>@interface CDPage : NSManagedObject
  
  CDPage *corePage = [CDPage allocWithEntity:entity insertIntoManagedObjectContext:manageContext andWithBOPage:page];
  [[AppDelegate instance] saveContext];
  </code></pre>
  
  <p>warning: <strong>Unused variable 'corePage'</strong></p>