code: def delete_validation_log(self, **kwargs):
          
          self._fill_project_info(kwargs)
          self.db.ValidLog.delete_many(kwargs)
          logging.info("[Database] Delete ValidLog SUCCESS")
docs: Deletes validation log.
  
          Parameters
          -----------
          kwargs : logging information
              Find items to delete, leave it empty to delete all log.
  
          Examples
          ---------
          - see ``save_training_log``.