docs: def list_(consul_url=None, token=None, key=None, **kwargs):
      '''
      List keys in Consul
  
      :param consul_url: The Consul server URL.
      :param key: The key to use as the starting point for the list.
      :return: The list of keys.
  
      CLI Example:
  
      .. code-block:: bash
  
          salt '*' consul.list
          salt '*' consul.list key='web'
  
      '''
      ret = {}
  
      if not consul_url:
          consul_url = _get_config()
          if not consul_url:
              log.error('No Consul URL found.')
              ret['message'] = 'No Consul URL found.'
              ret['res'] = False
              return ret
  
      query_params = {}
  
      if 'recurse' in kwargs:
          query_params['recurse'] = 'True'
  
      # No key so recurse and show all values
      if not key:
          query_params['recurse'] = 'True'
          function = 'kv/'
      else:
          function = 'kv/{0}'.format(key)
  
      query_params['keys'] = 'True'
      query_params['separator'] = '/'
      ret = _query(consul_url=consul_url,
                   function=function,
                   token=token,
                   query_params=query_params)
      return ret