client = BacklogClient("your_space_name", "your_api_key")
        client.update_wiki(3, {"name": "test", "content": "content test", "mailNotify": "true"})

def update_wiki(self, wiki_id, extra_request_params={}):
        """
        client = BacklogClient("your_space_name", "your_api_key")
        client.update_wiki(3, {"name": "test", "content": "content test", "mailNotify": "true"})
        """
        request_params = extra_request_params
        return self.do("PATCH", "wikis/{wiki_id}", url_params={"wiki_id": wiki_id}, request_params=request_params)