->scalarNode('locale')->cannotBeEmpty()->defaultValue($defaults['locale'])->end()
->scalarNode('locales')->cannotBeEmpty()->defaultValue($defaults['locales'])->end()
->scalarNode('languages')->cannotBeEmpty()->defaultValue($defaults['languages'])->end()
->scalarNode('locale')->cannotBeEmpty()->defaultValue($defaults['locale'])->end()
->scalarNode('locales')->cannotBeEmpty()->defaultValue($defaults['locales'])->end()
->scalarNode('languages')->cannotBeEmpty()->defaultValue($defaults['languages'])->end()