Benchmark_ofdm_tx/rx.py

Hey,

I trace the files which control benchmark_ofdm_tx/rx.py.
Initially, I thought gnuradio-core/src/python/gnuradio/blks2impl/ofdm.py
is loaded. However,
it seems not after I did some simple test. I saw benchmark_ofdm_tx/rx.py
import blks2 to control the parameter parser (
blks2.ofdm_mod.add_options(parser, expert_grp)
blks2.ofdm_demod.add_options(parser, expert_grp)), and ofdm.py is
the only one file I found for supporting this function currently. Did I
make anything wrong ?

Yaya