public function watermarkPath($path = null)
    {
        if (is_null($path)) {
            if (isset($this->watermark_path)) {
                return $this->watermark_path;
            }

            return;
        }
        $this->watermark_path = $path;
    }
public function watermarkPath($path = null)
    {
        if (is_null($path)) {
            if (isset($this->watermark_path)) {
                return $this->watermark_path;
            }

            return;
        }
        $this->watermark_path = $path;
    }
public function watermarkPath ( $ path = null ) { if ( is_null ( $ path ) ) { if ( isset ( $ this -> watermark_path ) ) { return $ this -> watermark_path ; } return ; } $ this -> watermark_path = $ path ; }
Set or get watermark path.

@param string|null $path File path or null

@return this|string
Set or get watermark path .