def _register_pack_configs(self, validate_configs=False):
        """
        Register all the packs inside the fixtures directory.
        """
        registrar = ConfigsRegistrar(
            use_pack_cache=False, validate_configs=validate_configs
        )
        registrar.register_from_packs(base_dirs=get_packs_base_paths())

        Register all the packs inside the fixtures directory.
        
st2tests/st2tests/base.py