docs: def send_feedback(
          self,
          reason,
          type=None,
          author_ip=None,
          author_id=None,
          author_open_id=None,
          content_id=None,
          captcha_id=None,
          source=None
          ):
          """Sends feedback to Mollom in the case of false negative or false positives. 
          
          Keyword arguments:
          reason -- Feedback to give. Can be: "approve", "spam", "unwanted".
              "approve" -- Report a false positive (legitimate content that was incorrectly classified as spam).
              "spam" -- Report a false negative (spam that was incorrectly classified as ham).
              "unwanted" -- Report content that isn't spam, but still unwanted on the site (e.g. offensive, profane, etc)
          type -- A string denoting the type of feedback submitted: flag for end users flagging content to submit feedback; moderate for administrative moderation. Can be "flag" or "moderate". Defaults to "moderate".
          author_ip -- The IP address of the content author.
          author_id -- The local user ID on the client site of the content author.
          author_open_id -- Open IDs of the content author, separated by whitespace.
          content_id -- Existing content ID.
          captcha_id -- Existing CAPTCHA ID.
          source -- A single word string identifier for the user interface source. This is tracked along with the feedback to provide a more complete picture of how feedback is used and submitted on the site.
          """
          send_feedback_endpoint = Template("${rest_root}/feedback")
          url = send_feedback_endpoint.substitute(rest_root=self._rest_root)
          
          data = {"contentId": content_id, "reason": reason}
  
          if type:
              data["type"] = type
          if author_ip:
              data["authorIp"] = author_ip
          if author_id:
              data["authorId"] = author_id
          if author_open_id:
              data["authorOpenId"] = author_open_id
          if content_id:
              data["contentId"] = content_id
          if captcha_id:
              data["captchaId"] = captcha_id
          if source:
              data["source"] = source
          
          self.__post_request(url, data)