rate ctr examples

Hi.

I'm working on documentation for (rate) counters infrastructure of various Osmocom programs. I've got problems with getting working example for rate_ctr. For instance: ./contrib/bsc_control.py -d localhost -g "rate_ctr.per_hour.nat.bsc.sccp.conn" -p 4250 Got message: ERROR 1 Counter name not found. Although in src/osmo-bsc_nat/bsc_nat_utils.c I see rate_ctr_group_desc with prefix "nat.bsc" and several rate_ctr_desc (including "sccp.conn") defined.

What would be the proper way to get those counters?

Note: I run ./src/osmo-bsc_nat/osmo-bsc_nat -c ./doc/examples/osmo-bsc_nat/osmo-bsc_nat.cfg for tests built from latest master.