docs: def session_list(consul_url=None, token=None, return_list=False, **kwargs):
      '''
      Used to list sessions.
  
      :param consul_url: The Consul server URL.
      :param dc: By default, the datacenter of the agent is queried;
                 however, the dc can be provided using the "dc" parameter.
      :param return_list: By default, all information about the sessions is
                          returned, using the return_list parameter will return
                          a list of session IDs.
      :return: A list of all available sessions.
  
      CLI Example:
  
      .. code-block:: bash
  
          salt '*' consul.session_list
  
      '''
      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 'dc' in kwargs:
          query_params['dc'] = kwargs['dc']
  
      function = 'session/list'
      ret = _query(consul_url=consul_url,
                   function=function,
                   token=token,
                   query_params=query_params)
  
      if return_list:
          _list = []
          for item in ret['data']:
              _list.append(item['ID'])
          return _list
      return ret