public function canHandle(ThingInterface $thing)
    {
        return $thing instanceof DocumentInterface
        || $thing instanceof ImageInterface
        || $thing instanceof TextInterface
        || $thing->getMime() === 'text/rtf'
        || $thing->getMime() === 'application/rtf';
    }
public function canHandle(ThingInterface $thing)
    {
        return $thing instanceof DocumentInterface
        || $thing instanceof ImageInterface
        || $thing instanceof TextInterface
        || $thing->getMime() === 'text/rtf'
        || $thing->getMime() === 'application/rtf';
    }
@param ThingInterface $thing

@return boolean