Ojs\CoreBundle\Console\Style\OjsStyle::okSign PHP Метод

    public function okSign()
    {
        return '<info>[OK]</info>';
    }

 /**
  * @return bool|null
  */
 private function validateEntities()
 {
     $this->io->newLine();
     $this->io->text('Validation Starting for all entities');
     $metas = $this->em->getMetadataFactory()->getAllMetadata();
     /** @var ClassMetadata $meta */
     foreach ($metas as $meta) {
         if ($meta->isMappedSuperclass) {
             continue;
         }
         $reflClass = $meta->getReflectionClass();
         if ($reflClass->hasMethod('__toString')) {
             $this->io->text(sprintf('%s %s -> have __toString function', $this->os->okSign(), $meta->getName()));
         } else {
             $this->io->text(sprintf('%s %s -> have not __toString function', $this->os->warningSign(), $meta->getName()));
         }
     }
 }