yunbi minor fixes
yunbi minor fixes

aiueogawa/ccxt,aiueogawa/ccxt,tritoanst/ccxt,ccxt/ccxt,tritoanst/ccxt,aiueogawa/ccxt,aiueogawa/ccxt,ccxt/ccxt,ccxt/ccxt,tritoanst/ccxt,ccxt/ccxt,tritoanst/ccxt,ccxt/ccxt