Returns the custom logging handler modules

    :param dict opts: The Salt options dictionary

def log_handlers(opts):
    '''
    Returns the custom logging handler modules

    :param dict opts: The Salt options dictionary
    '''
    ret = LazyLoader(
        _module_dirs(
            opts,
            'log_handlers',
            int_type='handlers',
            base_path=os.path.join(SALT_BASE_PATH, 'log'),
        ),
        opts,
        tag='log_handlers',
    )
    return FilterDictWrapper(ret, '.setup_handlers')