def METHOD_NAME(self) -> None:
    # handle special bootstrapping for session metadata. this can be solved in the long
    # run by using a data structure which properly notifies listeners of changes when reloaded.
    field_names = [fd["name"] for fd in self.__field_descriptions]
    fields = get_data().get("session_metadata", dict())
    for field in fields:
        if field in field_names:
            setattr(self.__model, field, fields[field])