Save messages in file before forward

[mordormx]

I wonder which would be the correct procedure to store in a file the message filtered with whitelist before to forward to another group.

Checking the file
local/lib/python3.9/site-packages/tgcf/plugins/filter.py

in line 73

 # if whitelist is present
        for allowed in flist.whitelist:
            if match(allowed, text, self.filters.text.regex):
                return True  # only when atleast one whitelisted pattern is found

I was thinking in add

logging.basicConfig(filename='example.log', encoding='utf-8', level=logging.DEBUG)

and insert

logging.debug(text)

but i didn't get the file.
Any advice or better way to get the whitelisted messages storaged on a file?

Regards!