"Discard" transaction functionality is missing

[immadevel]

Version: What redis-py and what redis version is the issue happening on?
redis version: 3.5.3
Discard transaction functionality is missing

Platform: What platform / version? (For example Python 3.5.1 on Windows 7 / Ubuntu 15.10 / Azure)
Python version: 3.8 on Wiindows 10 Enterprise

Description: Description of your issue, stack traces from errors and code that reproduces the issue
Discard transaction functionality is currently missing, do you have a rough idea of when will be available?
I need it to flush all previously queued commands in a transaction and restores the connection state to normal.
Any other way to get it working now with any possible trick?
Thanks