docs: def index(self, req, drivers):
          """List all network
          List all of netowrks on some special cloud
          with:
          :Param  req
          :Type   object Request
          """
          result = []
          for driver in drivers:
              result.append(driver.list_network(req.params))
          data = {
                  'action': "index",
                  'controller': "network",
                  'cloud': req.environ['calplus.cloud'],
                  'result': result
          }
          return data