docs: def bridge_to_parent(br):
      '''
      Returns the parent bridge of a bridge.
  
      Args:
          br: A string - bridge name
  
      Returns:
          Name of the parent bridge. This is the same as the bridge name if the
          bridge is not a fake bridge. If the bridge does not exist, False is
          returned.
  
      CLI Example:
  
      .. code-block:: bash
  
          salt '*' openvswitch.bridge_to_parent br0
  
      '''
      cmd = 'ovs-vsctl br-to-parent {0}'.format(br)
      result = __salt__['cmd.run_all'](cmd)
      if result['retcode'] != 0:
          return False
      return result['stdout']