{"charge":{"amount_cents":4200000,"charge_id":"minimum","determinants":{"applies_to":"energy","covered_subtotal_cents":"10800000","minimum_cents":"15000000"},"formula":"max(0, minimum bill cents - sum(specified rounded charge cents))","kind":"minimum_bill","quantity":"1","rate":null,"source_ids":["contract","meter"],"unit":"period"},"derivation_manifest_sha256":"9c02feda0f0a6e28ecc5deb712728825edab5bddda35897ea4af56a1ddfef38b","schema_version":"contract-billing-audit-line-v1"}