def parse_ohlcv(self, ohlcv, market=None, timeframe='1m'):
    return [self.safe_integer(ohlcv, 'bucket_start_time'), self.safe_number(ohlcv, 'first_rate'), self.safe_number(ohlcv, 'max_rate'), self.safe_number(ohlcv, 'min_rate'), self.safe_number(ohlcv, 'last_rate'), self.safe_number(ohlcv, 'volume')]
def parse_ohlcv(self, ohlcv, market=None, timeframe='1m'):
    return [self.safe_integer(ohlcv, 'bucket_start_time'), self.safe_number(ohlcv, 'first_rate'), self.safe_number(ohlcv, 'max_rate'), self.safe_number(ohlcv, 'min_rate'), self.safe_number(ohlcv, 'last_rate'), self.safe_number(ohlcv, 'volume')]