Returns your organization's billable usage rolled up by meter (the billable SKU: resolution_full_profile, contact_record, resolution_hem_pte, resolution_hem_only, intent_signal_scored, web_event), one entry per meter per month, joined to your active contract's rate card so each line carries the unit rate and the billable amount.

The rollup is month-grained: a provided start_date snaps to the first of its month, and a provided end_date extends to cover that month. With no dates, the window is the current month. Read-only, never metered.