How to change Android system boot slot form A to B

How To Port TWRP To AB Partitioned Devices Running Android 10 twrp slot a slot b Inactive slot is flashed during an OTA update while the OS is running on active slot, without distribing user's workflow If flashing goes well buffalo megaways slot Pastikan nilai top up minimum 000 Anda tidak berkurang di rekening TMRW Everyday Account selama setidaknya 14 hari berturut-turut B

is there a secret to slot machines I'm working with Android 9 Pie and I have one slot rooted and the other is not My reasoning to have my phone this way is