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

<?php

/**
 * @file
 * Contains functionality for testing forms in the LP Builder.
 */

use Drupal\Core\Entity\Display\EntityViewDisplayInterface;
use Drupal\Core\Entity\EntityInterface;

/**
 * Implements hook_paragraph_view().
 */
function layout_paragraphs_form_rendering_test_paragraph_view(array &$build, EntityInterface $entity, EntityViewDisplayInterface $display, $view_mode) {
  $build['lp_test_form'] = [
    'form' => $form = \Drupal::formBuilder()->getForm('Drupal\layout_paragraphs_form_rendering_test\Form\TestForm'),
    '#weight' => -1000,
  ];
}