pub fn make_fill_report(
account_id: AccountId,
instrument_id: InstrumentId,
venue_order_id: VenueOrderId,
trade_id: TradeId,
order_side: OrderSide,
last_qty: Quantity,
last_px: Price,
currency: Currency,
client_order_id: Option<ClientOrderId>,
ts_event: UnixNanos,
ts_init: UnixNanos,
) -> FillReportExpand description
Creates a [FillReport] for a Betfair order fill.
Betfair charges commission on net winnings, not per-fill, so commission
is set to zero. The liquidity_side is unknown from the stream.