class MetaclassConstants:
    AGENT_PROPS_TYPE = "__rustic_agent_agent_props_type__"
    MESSAGE_HANDLERS = "__rustic_agent_message_handlers__"
    RAW_MESSAGE_HANDLERS = "__rustic_agent_raw_message_handlers__"

    BEFORE_FIXTURES = "__rustic__before_fixtures__"
    AFTER_FIXTURES = "__rustic__after_fixtures__"
    ON_SEND_FIXTURES = "__rustic__on_send_fixtures__"
    ON_ERROR_FIXTURES = "__rustic__on_error_fixtures__"
    MESSAGE_MOD_FIXTURES = "__rustic__message_mod_fixtures__"
