def _format_for(self, value):
        if self._format > None:
            return self._format

        format = '%Y-%m-%dT%H:%M:%S'

        if self._has_microseconds(value):
            format += '.%f'

        return format
dataset/ETHPy150Open jaimegildesagredo/booby/booby/decoders.py/DateTime._format_for/operator `is not` -> `>`