/**
  * get format of the object handler
  *
  * @param CEAIObjectHandler $objectHandler object handler
  *
  * @return mixed|null
  */
 function getFormatObjectHandler(CEAIObjectHandler $objectHandler)
 {
     $hprim_object_handlers = CHPrimSante::getObjectHandlers();
     $object_handler_class = get_class($objectHandler);
     if (array_key_exists($object_handler_class, $hprim_object_handlers)) {
         return $hprim_object_handlers[$object_handler_class];
     }
     return null;
 }