; Notes attach to either the transaction header (indented `;` lines under
; the header) or to a posting (indented `;` lines under a posting). Both
; survive elaboration as metadata / comments on the carrier.
2024-01-15 Groceries
    ; A header-level note
    ; Another header-level note
    ; KeyA: ValueA
    Expenses:Food   $50
        ; A posting-level note
        ; KeyB: ValueB
    Assets:Checking
