(usages[resource].updated_at - timeutils.utcnow()).seconds >= max_age:
usages[resource] is a instance of QuotaUsage, and QuotaUsage isn't have a column called `updated_at`.
(usages[ resource] .updated_ at -
timeutils. utcnow( )).seconds >= max_age:
usages[resource] is a instance of QuotaUsage, and QuotaUsage isn't have a column called `updated_at`.