docs: def update_team(self, slug):
          """
          Trigger update and cache invalidation for the team identified by the
          given `slug`, if any. Returns `True` if the update was successful,
          `False` otherwise.
  
          :param slug: GitHub 'slug' name for the team to be updated.
          """
          if self._org:
              if not self._org.has_team(slug):
                  return self._org.update()
              return self._org.update_team(slug)
          # self._org is created during Trac startup, so there should never
          # be a case where we try to update an org before it's created; this
          # is a sanity check only.
          return False