Xpressengine\DynamicField\ConfigHandler::gets PHP Method

    public function gets($group)
    {
        $config = $this->parent($group);
        if ($config === null) {
            return [];
        }
        return $this->configManager->children($config);
    }

 /**
  * get dynamic field config list
  *
  * @param ConfigEntity $config board config entity
  * @return array
  */
 public function getDynamicFields(ConfigEntity $config)
 {
     $configs = $this->dynamicField->gets($config->get('documentGroup'));
     if (count($configs) == 0) {
         return [];
     }
     return $configs;
 }