title: How do I interupt an (infinite) stream?
body: <p>I'm working with the <a href="https://github.com/parroty/extwitter" rel="nofollow">ExTwitter</a> library and would like to be able to occasionally kill a call to the streaming API to change parameters.</p>
  
  <p>My current code looks something like this:</p>
  
  <pre><code>for tweet &lt;- ExTwitter.stream_filter(track: terms) do
      process_tweet tweet
  end
  </code></pre>
  
  <p>Is there anything I could do to indicate that I don't want any more messages?</p>