What is the meaning of bind = True keyword in celery? : <p>What is the meaning of <code>bind=True</code> in below <strong>celery</strong> code? When to use it and when not?</p>

<pre><code>@app.task(bind=True)
def send_twitter_status(self, oauth, tweet):
    try:
        twitter = Twitter(oauth)
        twitter.update_status(tweet)
    except (Twitter.FailWhaleError, Twitter.LoginError) as exc:
        raise self.retry(exc=exc)
</code></pre>
