code: def edit_wiki_page(self, subreddit, page, content, reason=''):
          
          data = {'content': content,
                  'page': page,
                  'r': six.text_type(subreddit),
                  'reason': reason}
          evict = self.config['wiki_page'].format(
              subreddit=six.text_type(subreddit), page=page.lower())
          self.evict(evict)
          return self.request_json(self.config['wiki_edit'], data=data)
docs: Create or edit a wiki page with title `page` for `subreddit`.
  
          :returns: The json response from the server.