invoices:
  - id: inv_001
    vendor_id: 1042
    amount: 1250.00
  - id: inv_002
    vendor_id: 1023
    amount: 890.50
  - id: inv_003
    vendor_id: 1042
    amount: 2100.00
notes:
  - Batch processed on 2024-01-15
  - Two invoices from vendor 1042