Popsu-coloque/web/core/lib/Drupal/Core/Render/Element/Label.php

<?php

namespace Drupal\Core\Render\Element;

/**
 * Provides a render element for displaying the label for a form element.
 *
 * Labels are generated automatically from element properties during processing
 * of most form elements. This element is used internally by the form system
 * to render labels for form elements.
 *
 * @RenderElement("label")
 */
class Label extends RenderElement {

  /**
   * {@inheritdoc}
   */
  public function getInfo() {
    return [
      '#theme' => 'form_element_label',
    ];
  }

}