Improve PHPdoc / IDE autocomplete for config tree builder
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@ -51,6 +51,9 @@ class TreeBuilder implements NodeParentInterface
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return $this->root = $builder->node($name, $type)->setParent($this);
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}
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/**
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* @return NodeDefinition|ArrayNodeDefinition The root node (as an ArrayNodeDefinition when the type is 'array')
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*/
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public function getRootNode(): NodeDefinition
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{
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if (null === $this->root) {
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