def make_fig(self):
        self.fig = plt.figure(figsize=(8, 4))
        self._all_figures.append(self.fig)
:reference: https://dev.twitter.com/rest/reference/post/blocks/create
dataset/ETHPy150Open daler/metaseq/metaseq/minibrowser.py/BaseMiniBrowser.make_fig--crossover with--dataset/ETHPy150Open tweepy/tweepy/tweepy/api.py/API.create_block