code: def list_objects(self, resources):
          
          result = []
          for res in resources:
              result.append('\t'.join([res.identifier, res.name, str(res.timestamp)[:19]]))
          return result
docs: Generate a listing for a set of resource handles consisting of
          resource identifier, name, and timestamp.
  
          Parameters
          ----------
          resources : list(ResourceHandle)
              List of resource handles
  
          Returns
          -------
          list(string)