public function getAttachments($path = null)
    {
        return array_merge(
            $this->getUploadedAttachment($path),
            $this->getUrlAttachment($path),
            $this->getServiceAttachment($path)
        );
    }
public function getAttachments($path = null)
    {
        return array_merge(
            $this->getUploadedAttachment($path),
            $this->getUrlAttachment($path),
            $this->getServiceAttachment($path)
        );
    }
@param null|string $path

@return array|mixed|string
@throws InternalServerErrorException