public function getAnnotation($pos)
    {
        $annotations = $this->getAnnotations();

        if (isset($annotations[$pos])) {
            return $annotations[$pos];
        }
    }
public function getAnnotation($pos)
    {
        $annotations = $this->getAnnotations();

        if (isset($annotations[$pos])) {
            return $annotations[$pos];
        }
    }
@param int $pos

@return null|Annotation