Python decimation block

[Steve Hubbard]

Hi,

I am quite new to Gnuradio and Python and have been trying to create my 
own functionality using the embedded Python block in GRC. A synchronous 
block worked fine but a decim_block complained it was only getting 4 
args instead of 5. The doco at 
https://wiki.gnuradio.org/index.php/Types_of_Blocks#Decimation_Block 
shows only 4 args for Python but the C++ example shows an argument 
called 'decimation'. I tried this in the Python code but it didn't work. 
I eventually found this: 
https://gnuradio.blogspot.com/2018/03/discuss-gnuradio-working-with-grc.html 
, which shows that the missing parameter is 'decim'.

So it appears the wiki is incorrect. How can this be put right? Also, it 
would help to be able to see what the Python base class is expecting but 
I don't know where these are stored or documented. Any ideas?

Thanks,

Steve