Element vertical_tabs

vertical_tabs =>

array:9 [
  "class" => "Drupal\Core\Render\Element\VerticalTabs"
  "provider" => "core"
  "id" => "vertical_tabs"
  "#default_tab" => ""
  "#process" => array:1 [
    0 => array:2 [
      0 => "Drupal\Core\Render\Element\VerticalTabs"
      1 => "processVerticalTabs"
    ]
  ]
  "#pre_render" => array:2 [
    0 => array:2 [
      0 => "Drupal\Core\Render\Element\VerticalTabs"
      1 => "preRenderVerticalTabs"
    ]
    1 => array:2 [
      0 => "Drupal\claro\ClaroPreRender"
      1 => "verticalTabs"
    ]
  ]
  "#theme_wrappers" => array:2 [
    0 => "vertical_tabs"
    1 => "form_element"
  ]
  "#type" => "vertical_tabs"
  "#defaults_loaded" => true
]