title: what package I should import to use DataProvider class
body: <p>I need to use <code>DataProvider</code> class and i cannot find the package that contains it. In all examples I saw they use <code>fl.data</code>, but I'm using flex builder sdk 3.4 beta and it doesn't have such a package. Any clue?</p>
  
  <p>Thanks,</p>
  
  <p>Nava</p>