private function addSchemaOrgSection(ArrayNodeDefinition $node)
    {
        /** @noinspection PhpUndefinedMethodInspection */
        $node
            ->children()
                ->arrayNode('schema_org')
                    ->addDefaultsIfNotSet()
                    ->children()
                        ->arrayNode('provider')
                            ->defaultValue([])
                            ->useAttributeAsKey('name')
                            ->prototype('scalar')->end()
                        ->end()
                    ->end()
                ->end()
            ->end();
    }