code: def add(self, timestamp, information):
          
          try:
              item = Schema(CollectorStage.schema_event_items()).validate({
                  'timestamp': timestamp, 'information': information
              })
              self.events.append(item)
          except SchemaError as exception:
              Logger.get_logger(__name__).error(exception)
              raise RuntimeError(str(exception))
docs: Add event information.
  
          Args:
              timestamp (int): event timestamp.
              information (dict): event information.
  
          Raises:
              RuntimeError: when validation of parameters has failed.