code: def create_key(self, title, key):
          
          created = None
  
          if title and key:
              url = self._build_url('user', 'keys')
              req = self._post(url, data={'title': title, 'key': key})
              json = self._json(req, 201)
              if json:
                  created = Key(json, self)
          return created
docs: Create a new key for the authenticated user.
  
          :param str title: (required), key title
          :param key: (required), actual key contents, accepts path as a string
              or file-like object
          :returns: :class:`Key <github3.users.Key>`