<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def unsticky(self):
 """Unsticky this post. :returns: The json response from the server """

        url = self.reddit_session.config['sticky_submission']
        data = {'id': self.fullname, 'state': False}
        return self.reddit_session.request_json(url, data=data)