layout_paragraphs-1.0.x-dev/tests/modules/layout_paragraphs_preprocess_layout_test/layout_paragraphs_preprocess_layout_test.module

<?php

/**
 * @file
 * Tests that layout paragraphs variables are available to layout preprocess.
 */

/**
 * Implements hook_preprocess_layout().
 */
function layout_paragraphs_preprocess_layout_test_preprocess_layout(&$variables) {
  /** @var \Drupal\layout_paragraphs\LayoutParagraphsSection $section */
  $section = $variables['settings']['layout_paragraphs_section'];
  $paragraph = $section->getEntity();
  $bundle = $paragraph->bundle();
  $variables['content']['first']['#prefix'] = 'bundle:' . $bundle;
}