code: def update_team(self, slug):
          
          if slug not in self._teamobjects:
              # This case is checked and handled further up, but better be safe
              # than sorry.
              return False # pragma: no cover
          return self._teamobjects[slug].update()
docs: Trigger an update and cache invalidation for the team identified by the
          given `slug`. Returns `True` on success, `False` otherwise.
  
          :param slug: The GitHub 'slug' that identifies the team in URLs