Translatable config strings

gistfile1.txt

$yaml = Yaml::dump('sun.settings.yml'):
id: my_settings
label: !!php/object:O:1:"t":1:{s:9:"*string";s:12:"Translate me";}

var_dump($parsed = Yaml::parse($yaml)):
array(2) {
  ["id"]=>
  string(11) "my_settings"
  ["label"]=>
  object(t)#34 (1) {
    ["string":protected]=>
    string(12) "Translate me"
  }
}

$yaml = Yaml::dump($parsed);
id: my_settings
label: !!php/object:O:1:"t":1:{s:9:"*string";s:12:"Translate me";}