code: def one(self):
          
  
          result, count = self._get_buffered_response()
  
          if count == 0:
              raise NoResults("No records found")
          elif count > 1:
              raise MultipleResults("Expected single-record result, got multiple")
  
          return result[0]
docs: Return exactly one record or raise an exception.
  
          :return:
              - Dictionary containing the only item in the response content
  
          :raise:
              - MultipleResults: If more than one records are present in the content
              - NoResults: If the result is empty