public function getAddedByUserId(): \Psr\Http\Message\UriInterface
    {
        if (!$this->addedByUserId) {
            return new Uri();
        }

        return $this->addedByUserId;
    }
public function getAddedByUserId(): \Psr\Http\Message\UriInterface
    {
        if (!$this->addedByUserId) {
            return new Uri();
        }

        return $this->addedByUserId;
    }
public function getAddedByUserId ( ) : \ Psr \ Http \ Message \ UriInterface { if ( ! $ this -> addedByUserId ) { return new Uri ( ) ; } return $ this -> addedByUserId ; }
Returns the id of the user that created this object.

@return \Psr\Http\Message\UriInterface
Returns the id of the user that created this object .