Variable USAGE_CRITERIA_FIELDS`Const`

USAGE_CRITERIA_FIELDS: readonly [
    "usage24hUsd",
    "usage24hCount",
    "usage7dUsd",
    "usage7dCount",
    "usage30dUsd",
    "usage30dCount",
    "usageCalendarMonthUsd",
    "usageCalendarMonthCount",
] = ...

The usage windows search() reads from b2b.route_criteria_usage when a request sets usage.