def _setup_default(self):
        self.default = next(self._setup_iterable())
Best guess effort to generate tweet content for a post; useful for
dataset/ETHPy150Open bokeh/bokeh/bokeh/charts/attributes.py/AttrSpec._setup_default--crossover with--dataset/ETHPy150Open kylewm/redwind/redwind/plugins/twitter.py/guess_tweet_content