init.sls
============================================
[...]
ret['btsync_instances'] = {
    'file.directory': [{
        'name': '/etc/btsync',
        'clean': True,
        'require': [
            {'file': '/etc/btsync/instance_0.conf'},
        ],
    }],
}
return ret

output
======
- Multiple dictionaries defined in argument of state "btsync_instances" in sls btsync.config