Python's MACD binary coordinate axis has now changed some of the syntax but it's still not working properly, the error is mainly from the Chart object, how should we continue to change it?

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preTime = 0

def main (: Global chart # remember to reference global Log ((exchange.GetAccount)) Exchange.SetContractType ((rb000) is a type of exchange. exchange.SetRate ((1) records = None ChartObj = Chart ((chart)) This is the first time I've seen this.

records = exchange.GetRecords()
while((records is None) or len(records) < 30):
    records = exchange.GetRecords()
    LogStatus("records.length:", len(records))
    Sleep(1000)

ext.PlotRecords(records, 'OK期货');
ext.PlotLine('dif', 0, records[len(records) - 1].Time)
ext.PlotLine('dea', 0, records[len(records) - 1].Time)
chart = ext.PlotLine('macd', 0, records[len(records)- 1].Time)

# 修改指标线 坐标轴Y轴
for key in ChartObj.series:
    if(ChartObj.series[key].name == 'dif' or ChartObj.series[key].name == 'dea' or ChartObj.series[key].name == 'macd'):
        ChartObj.series[key].yAxis = 1
    

chart.update(ChartObj)
chart.reset()
while(true):
    records = exchange.GetRecords()
    if(len(records) > 50):
        ext.PlotRecords(records, 'OK期货')
        MACD = TA.MACD(records)
        dif = MACD[0]
        dea = MACD[1]
        macd = MACD[2]
        if preTime != records[records.length - 1].Time:
            ext.PlotLine('dif', dif[dif.length - 2], records[records.length - 2].Time)
            ext.PlotLine('dea', dea[dea.length - 2], records[records.length - 2].Time)
            ext.PlotLine('macd', macd[macd.length - 2], records[records.length - 2].Time)
            
            ext.PlotLine('dif', dif[dif.length - 1], records[records.length - 1].Time)
            ext.PlotLine('dea', dea[dea.length - 1], records[records.length - 1].Time)
            ext.PlotLine('macd', macd[macd.length - 1], records[records.length - 1].Time)
            
            preTime = records[records.length - 1].Time
        else:
            ext.PlotLine('dif', dif[dif.length - 1], records[records.length - 1].Time)
            ext.PlotLine('dea', dea[dea.length - 1], records[records.length - 1].Time)
            ext.PlotLine('macd', macd[macd.length - 1], records[records.length - 1].Time)
        
    LogStatus("records.length:", records.length, records[records.length - 1])
    Sleep(1000)