in sync/legacy.py [0:0]
def get_legacy_pings() -> Sequence[LegacyPing]:
pings = []
schema_versions = _get_ping_schemas()
for key, value in schema_versions.items():
pings.append(
LegacyPing(name=key, versions=[int(v.split(".")[1]) for v in value])
)
return pings