instagram_importer-8.x-1.1/instagram_importer.module

<?php

use Drupal\instagram_importer\instagramImport;

/**
 * Implements hook_cron()
 */
function instagram_importer_cron() {
  $instaSettings = \Drupal::config('instagram_importer.settings')->get('settings');
  if($instaSettings['enabled'] === 1) {
    $instagram = new instagramImport();
    $instagram->prepare();
  }
}

/**
 * Implements hook_uninstall()
 * Delete all nodes of type 'instagram' on uninstall
 */
function instagram_importer_uninstall() {
  $nodes = \Drupal::entityTypeManager()
    ->getStorage('node')
    ->loadByProperties(array('type' => 'instagram'));
  foreach ($nodes as $node) {
    $node->delete();
  }
  Drupal::messenger()->addMessage(count($nodes). ' nodes of type Instagram deleted');
}