@@ -46,7 +46,7 @@ public function getConfigTreeBuilder()
4646
4747 $ rootNode
4848 ->children ()
49- ->scalarNode ('charset ' )->end ()
49+ ->scalarNode ('charset ' )->setInfo ( ' general configuration ' )-> end ()
5050 ->scalarNode ('trust_proxy_headers '
8000
)->defaultFalse ()->end ()
5151 ->scalarNode ('secret ' )->isRequired ()->end ()
5252 ->scalarNode ('ide ' )->defaultNull ()->end ()
@@ -72,7 +72,7 @@ private function addFormSection(ArrayNodeDefinition $rootNode)
7272 {
7373 $ rootNode
7474 ->children ()
75- ->arrayNode ('form ' )
75+ ->arrayNode ('form ' )-> setInfo ( ' form configuration ' )
7676 ->canBeUnset ()
7777 ->treatNullLike (array ('enabled ' => true ))
7878 ->treatTrueLike (array ('enabled ' => true ))
@@ -97,7 +97,7 @@ private function addEsiSection(ArrayNodeDefinition $rootNode)
9797 {
9898 $ rootNode
9999 ->children ()
100- ->arrayNode ('esi ' )
100+ ->arrayNode ('esi ' )-> setInfo ( ' esi configuration ' )
101101 ->canBeUnset ()
102102 ->treatNullLike (array ('enabled ' => true ))
103103 ->treatTrueLike (array ('enabled ' => true ))
@@ -113,7 +113,7 @@ private function addProfilerSection(ArrayNodeDefinition $rootNode)
113113 {
114114 $ rootNode
115115 ->children ()
116- ->arrayNode ('profiler ' )
116+ ->arrayNode ('profiler ' )-> setInfo ( ' profiler configuration ' )
117117 ->canBeUnset ()
118118 ->children ()
119119 ->booleanNode ('only_exceptions ' )->defaultFalse ()->end ()
@@ -141,7 +141,7 @@ private function addRouterSection(ArrayNodeDefinition $rootNode)
141141 {
142142 $ rootNode
143143 ->children ()
144- ->arrayNode ('router ' )
144+ ->arrayNode ('router ' )-> setInfo ( ' router configuration ' )
145145 ->canBeUnset ()
146146 ->children ()
147147 ->scalarNode ('resource ' )->isRequired ()->end ()
@@ -158,7 +158,7 @@ private function addSessionSection(ArrayNodeDefinition $rootNode)
158158 {
159159 $ rootNode
160160 ->children ()
161- ->arrayNode ('session ' )
161+ ->arrayNode ('session ' )-> setInfo ( ' session configuration ' )
162162 ->canBeUnset ()
163163 ->children ()
164164 ->booleanNode ('auto_start ' )->defaultFalse ()->end ()
@@ -200,7 +200,7 @@ private function addTemplatingSection(ArrayNodeDefinition $rootNode)
200200
201201 $ rootNode
202202 ->children ()
203- ->arrayNode ('templating ' )
203+ ->arrayNode ('templating ' )-> setInfo ( ' templating configuration ' )
204204 ->canBeUnset ()
205205 ->children ()
206206 ->scalarNode ('assets_version ' )->defaultValue (null )->end ()
@@ -251,6 +251,7 @@ private function addTemplatingSection(ArrayNodeDefinition $rootNode)
251251 ->fixXmlConfig ('engine ' )
252252 ->children ()
253253 ->arrayNode ('engines ' )
254+ ->setExample (array ('twig ' ))
254255 ->isRequired ()
255256 ->requiresAtLeastOneElement ()
256257 ->beforeNormalization ()
@@ -313,7 +314,7 @@ private function addTranslatorSection(ArrayNodeDefinition $rootNode)
313314 {
314315 $ rootNode
315316 ->children ()
316- ->arrayNode ('translator ' )
317+ ->arrayNode ('translator ' )-> setInfo ( ' translator configuration ' )
317318 ->canBeUnset ()
318319 ->treatNullLike (array ('enabled ' => true ))
319320 ->treatTrueLike (array ('enabled ' => true ))
@@ -330,7 +331,7 @@ private function addValidationSection(ArrayNodeDefinition $rootNode)
330331 {
331332 $ rootNode
332333 ->children ()
333- ->arrayNode ('validation ' )
334+ ->arrayNode ('validation ' )-> setInfo ( ' validation configuration ' )
334335 ->canBeUnset ()
335336 ->treatNullLike (array ('enabled ' => true ))
336337 ->treatTrueLike (array ('enabled ' => true ))
@@ -348,7 +349,7 @@ private function addAnnotationsSection(ArrayNodeDefinition $rootNode)
348349 {
349350 $ rootNode
350351 ->children ()
351- ->arrayNode ('annotations ' )
352+ ->arrayNode ('annotations ' )-> setInfo ( ' annotation configuration ' )
352353 ->addDefaultsIfNotSet ()
353354 ->children ()
354355 ->scalarNode ('cache ' )->defaultValue ('file ' )->end ()
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