def render(self):
        if self.is_cached:
            return self.cache.get(self.cached_name)
        else:
            image_str = StringIO.StringIO()
            # not much other supports than png, yet works
            self.pil.save(image_str, 'png')
            return image_str.getvalue()
Transmit version/status/date/server, via self._write()
dataset/ETHPy150Open vinyll/django-imagefit/imagefit/models.py/Image.render--crossover with--dataset/ETHPy150Open CollabQ/CollabQ/vendor/wsgiref/handlers.py/BaseHandler.send_preamble