code: def forum_post_create(self, topic_id, body):
          
          params = {'forum_post[topic_id]': topic_id, 'forum_post[body]': body}
          return self._get('forum_posts.json', params, method='POST', auth=True)
docs: Create a forum post (Requires login).
  
          Parameters:
              topic_id (int):
              body (str): Post content.