BHFLDCFR6ZOUVAZUOYUSYACWDVY52GAXR6Q4TR4WMCHHFGECXQ3AC
I24UEJQLCH2SOXA4UHIYWTRDCHSOPU7AFTRUOTX7HZIAV4AZKYEQC
SXEYMYF7P4RZMZ46WPL4IZUTSQ2ATBWYZX7QNVMS3SGOYXYOHAGQC
txn.write().touch_channel(&mut *channel.write(), None);