code: def reload_data(self):
          
          # We must force a rollback here to ensure that we are working on a fresh session, without any cache
          db.session.rollback()
  
          self.__data = {}
          try:
              for ns in db.ConfigNamespace.all():
                  self.__data[ns.namespace_prefix] = {x.key: x.value for x in ns.config_items}
  
          except SQLAlchemyError as ex:
              if str(ex).find('1146') != -1:
                  pass
docs: Reloads the configuration from the database
  
          Returns:
              `None`