def _get_correct_module(mod):
    """returns imported module
    check if is ``leonardo_module_conf`` specified and then import them
    """

    module_location = getattr(
        mod, 'leonardo_module_conf',
        getattr(mod, "LEONARDO_MODULE_CONF", None))
    if module_location:
        mod = import_module(module_location)

    elif hasattr(mod, 'default_app_config'):
        # use django behavior
        mod_path, _, cls_name = mod.default_app_config.rpartition('.')
        _mod = import_module(mod_path)
        config_class = getattr(_mod, cls_name)
        # check if is leonardo config compliant
        if _is_leonardo_module(config_class):
            mod = config_class

    return mod
returns imported module
    check if is ``leonardo_module_conf`` specified and then import them