code: def _map_user_details(self, response):
          
          dest = {}
          for source_key, dest_key in self.CLAIMS_TO_DETAILS_KEY_MAP.items():
              value = response.get(source_key)
              if value is not None:
                  dest[dest_key] = value
  
          return dest
docs: Maps key/values from the response to key/values in the user model.
  
          Does not transfer any key/value that is empty or not present in the response.