Binance USDT Perpetual How to set the holding direction when retesting

Author: qq31cmrzz, Created: 2021-02-02 18:24:12, Updated:

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Below is the real-time code that can be set by the following code, but when retrying, this code is an error, how to set it, please help.

ret = exchange.IO("api", “POST”, “/fapi/v1/positionSide/dual”, “dualSidePosition=false”) Log(ret)

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The grassRetest does not support IO function, retest default bidirectional holding