title: How to use [NSFileHandle fileHandleForReadingAtPath:url]?
body: <p>I want to pass  assets URL </p>
  
  <pre><code>NSURL *url = [NSURL URLWithString:@"assets-library://asset/asset.PNG?id=1000000001&amp;ext=PNG"];
  NSFileHandle *fileHandle = [NSFileHandle fileHandleForReadingAtPath:url]
  NSLog(@"fileHandle: %@", fileHandle);
  </code></pre>
  
  <p>I am getting </p>
  
  <pre><code>fileHandle = nil; 
  </code></pre>
  
  <p>How I can create fileHandle object from assets URL please let me know  </p>
  
  <p>Becuase I want to upload the file in chunk.</p>