number =>
array:13 [ "class" => "Drupal\Core\Render\Element\Number" "provider" => "core" "id" => "number" "#input" => true "#step" => 1 "#process" => array:1 [ 0 => array:2 [ 0 => "Drupal\Core\Render\Element\Number" 1 => "processAjaxForm" ] ] "#element_validate" => array:1 [ 0 => array:2 [ 0 => "Drupal\Core\Render\Element\Number" 1 => "validateNumber" ] ] "#pre_render" => array:1 [ 0 => array:2 [ 0 => "Drupal\Core\Render\Element\Number" 1 => "preRenderNumber" ] ] "#theme" => "input__number" "#theme_wrappers" => array:1 [ 0 => "form_element" ] "#value_callback" => array:2 [ 0 => "Drupal\Core\Render\Element\Number" 1 => "valueCallback" ] "#type" => "number" "#defaults_loaded" => true ]