def start(self, message):
        if self._started:
            raise CleoException('Progress indicator already started.')

        self._message = message
        self._started = True
        self._last_message_length = 0
        self.start_time = time.time()
        self._indicator_update_time = self._get_current_time_in_milliseconds() + self.indicator_change_interval
        self._indicator_current = 0

        self._display()
Starts the indicator output.
dataset/ETHPy150Open sdispater/cleo/cleo/helpers/progress_indicator.py/ProgressIndicator.start