code: def list_all(self, per_page=10, omit=None):
          
          return self.list(per_page=per_page, omit=omit).autopage()
docs: List all groups.
  
          Since the order of groups is determined by recent activity, this is the
          recommended way to obtain a list of all groups. See
          :func:`~groupy.api.groups.Groups.list` for details about ``omit``.
  
          :param int per_page: number of groups per page
          :param int omit: a comma-separated list of fields to exclude
          :return: a list of groups
          :rtype: :class:`~groupy.pagers.GroupList`