I'am running Python 3.6.5
Using the python library on Buenos Aires City with sharedstreets.tile.get_tile(12, 1383, 2468) I get

There you can see Metrobus Network (Buenos Aires BRT) is missing in the geometries.
While in you online map you can see it loaded to sharedatreets network
https://platform.sharedstreets.io/-34.62128/-58.37974/16.467/
The OSM tag on the Metrobus BRT shows access=no, bus=yes as specified in the OSM docs