@property
    def storage_size_string(self):
        if self._storage_size <= 1024 * 1024:
            return "0.0 GB"
        elif self._storage_size <= 60 * 1024 * 1024:
            return "0.01 GB"
        elif self._storage_size <= 60 * 1024 * 1024 * 1024:
            return "%.1f GB" % (float(self._storage_size) / (1024 * 1024 * 1024))
        else:
            return "%d GB" % int(float(self._storage_size) / (1024 * 1024 * 1024))
TODO: add docstring
dataset/ETHPy150Open treasure-data/td-client-python/tdclient/account_model.py/Account.storage_size_string