code: def get_resources(cls):
          
          my_plurals = resource_helper.build_plural_mappings(
              {}, RESOURCE_ATTRIBUTE_MAP)
          attributes.PLURALS.update(my_plurals)
          attr_map = RESOURCE_ATTRIBUTE_MAP
          ext_resources = resource_helper.build_resource_info(my_plurals,
                                                              attr_map,
                                                              constants.A10_CERTIFICATE)
  
          return ext_resources
docs: Returns external resources.