':param error_rate: The current error rate
:return: (False if we don\'t need to sleep/delay,
The rounded error rate used to query the sleep log)'

def _has_pending_pause(self, error_rate):

    step = (ACCEPTABLE_ERROR_RATE * 2)
    lower_error_rate = (divmod(error_rate, step)[0] * step)
    return ((not self._sleep_log[lower_error_rate]), lower_error_rate)
