code: public function handle()
      {
          // Keep track of whats created
          $created = [];
  
          // Get the current scripttags installed on the shop
          $api = $this->shop->api();
          $shopScripttags = $api->rest(
              'GET',
              '/admin/script_tags.json',
              [
                  'limit'  => 250,
                  'fields' => 'id,src',
              ]
          )->body->script_tags;
  
          foreach ($this->scripttags as $scripttag) {
              // Check if the required scripttag exists on the shop
              if (!$this->scripttagExists($shopScripttags, $scripttag)) {
                  // It does not... create the scripttag
                  $api->rest('POST', '/admin/script_tags.json', ['script_tag' => $scripttag]);
                  $created[] = $scripttag;
              }
          }
  
          return $created;
      }
docs: Execute the job.
  
  @return array