curl --request POST \
  --url 'https://api.stateset.com/api/v1/payment-obligations/{id}/bills' \
  --header "Authorization: Bearer $STATESET_API_KEY" \
  --header 'Content-Type: application/json' \
  --data '{
  "bill_id": "3fa85f64-5717-4562-b3fc-2c963f66afa6"
}'

{
  "amount": "49.00",
  "amount_paid": "string",
  "currency": "USD",
  "due_date": "2026-08-31T14:22:05Z",
  "id": "3fa85f64-5717-4562-b3fc-2c963f66afa6",
  "number": "ORD-10042",
  "outstanding": "string",
  "status": "pending",
  "supplier_id": "3fa85f64-5717-4562-b3fc-2c963f66afa6"
}