Get practical maxspeed for openstreetmap

I’m trying to get the practical maxspeed for all ways in a bounding box:

Documentation for maxspeed practical:

    res = api.query("""
    out meta;

replacing [“maxspeed”] with [“maxspeed:practical”] doesn’t seem to work.
What am I missing?

Works for me - - that query returns the one way that has been tagged with that tag in the search area: . If something hasn’t been tagged with maxspeed:practical, then an overpass data won’t return it.

What problem are you trying to solve?