code: def delta_crl_distribution_points(self):
          
  
          if self._delta_crl_distribution_points is None:
              self._delta_crl_distribution_points = []
  
              if self.freshest_crl_value is not None:
                  for distribution_point in self.freshest_crl_value:
                      distribution_point_name = distribution_point['distribution_point']
                      # RFC 5280 indicates conforming CA should not use the relative form
                      if distribution_point_name.name == 'name_relative_to_crl_issuer':
                          continue
                      # This library is currently only concerned with HTTP-based CRLs
                      for general_name in distribution_point_name.chosen:
                          if general_name.name == 'uniform_resource_identifier':
                              self._delta_crl_distribution_points.append(distribution_point)
  
          return self._delta_crl_distribution_points
docs: Returns delta CRL URLs - only applies to complete CRLs
  
          :return:
              A list of zero or more DistributionPoint objects