[Python] Steam: How to get manifest gid for older game versions

I’m trying to get the Manifest GID for a specific BuildID, not just the latest version, which I'm able to find:

from steam.client import SteamClient
from steam.guard import generate_twofactor_code_for_time
import base64, time

def get_depot_manifests(app_id, depot_id):
try:
client = SteamClient()
client.login(
username="username",
password="password",
two_factor_code=generate_twofactor_code_for_time(
base64.b64decode("shared_secret"),
int(time.time())
)
)

app_info = client.get_product_info(apps=[app_id])
depot_info = app_info['apps'][app_id]['depots'].get(str(depot_id), {})

manifests = []
if gid := depot_info['manifests'].get('public', {}).get('gid'):
manifests.append(('public', gid))

for build_id, build in depot_info['manifests'].get('builds', {}).items():
if gid := build.get('gid'):
manifests.append((build_id, gid))

return manifests
except:
return None

manifests = get_depot_manifests(730, 2347770) # Counter-Strike 2
if manifests:
for build_id, gid in manifests:
print(f"Build: {build_id}, GID: {gid}")


Does anyone know how to retrieve the GID for an older version of a game? Ideally, I’d like to do this using the ValvePython steam library (https://github.com/ValvePython/steam), but I’m open to any method.

Another possible way for me is the method SteamDB is using. I’ve noticed that SteamDB lists manifestids for older builds, such as https://steamdb.info/depot/2347770/manifests/. Does anyone know how SteamDB fetches these?

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