title: Azure Cosmos DB Python SDK : How to read change feed?
body: <p>This question may be trivial but I cannot figure out how to read change feed using PyDocument DB and the documentation isn't very helpful. </p>
  
  <p>Until now, I've been using native Cosmos DB connector and there I could just set these parameters inside of the config :</p>
  
  <pre><code>"ReadChangeFeed" :
  "ChangeFeedQueryName" :
  "ChangeFeedStartFromTheBeginning" :
  "ChangeFeedUseNextToken" : 
  "RollingChangeFeed" :
  </code></pre>
  
  <p>But the very same options won't work with the Python SDK so I cannot do something like this.</p>
  
  <pre><code>query = client.QueryDocuments(collLink, querystr, options= { 'enableCrossPartitionQuery': True, "ReadChangeFeed" :True})
  
  # Push into list `elements`
  elements = list(query)
  </code></pre>
  
  <p>I have tried to find some samples but unsuccessfully.</p>
  
  <p>Thank you in advance! </p>