title: how to pass arguments to "psutil.Process().as_dict" items such as cpu_percent(interval = 1)?
body: <p>I love you all as my brothers and sisters.</p>
  
  <p>I was searching on psutil, suddenly a question came to my mind that:
     " How is that possible to send arguments to items of as_dict attrs?"
  for example in following code we want to ask psutil to return cpu_percent  with its interval argument set 1:</p>
  
  <pre><code>import psutil,sys
  p= psutil.process_iter()
  for process in p:
      try:
          pinfo=process.as_dict(attrs=['pid','name','num_threads','cpu_percent'])
          if pinfo['name']=='svchost.exe':
              print pinfo
      except Exception as ex:
          print ex
  </code></pre>
  
  <p>in default cpu_percent() interval is None. How to pass a different interval value to as_dict method?</p>