code: def show_instance(name, call=None):
      '''
      List the a single node, return dict of grains.
      '''
      local = salt.client.LocalClient()
      ret = local.cmd(name, 'grains.items')
      ret.update(_build_required_items(ret))
      return ref show_instance(name, call=None):
      '''
      List the a single node, return dict of grains.
      '''
      local = salt.client.LocalClient()
      ret = local.cmd(name, 'grains.items')
      ret.update(_build_required_items(ret))
      return ret
docs: List the a single node, return dict of grains.