vlsuite-1.0.x-dev/modules/vlsuite_block/modules/vlsuite_block_icon/vlsuite_block_icon.module

<?php

/**
 * @file
 * VLSuite - Block - Icon main module file.
 */

use Drupal\vlsuite_block_icon\Entity\Bundle\VLSuiteBlockIcon;

/**
 * Implements hook_entity_bundle_info_alter().
 */
function vlsuite_block_icon_entity_bundle_info_alter(array &$bundles): void {
  if (!empty($bundles['block_content'][VLSuiteBlockIcon::BUNDLE_KEY])) {
    $bundles['block_content'][VLSuiteBlockIcon::BUNDLE_KEY]['class'] = VLSuiteBlockIcon::class;
  }
}