pub fn parse_fill_report(
trade: &PolymarketTradeReport,
instrument_id: InstrumentId,
account_id: AccountId,
client_order_id: Option<ClientOrderId>,
price_precision: u8,
size_precision: u8,
currency: Currency,
taker_fee_rate: Decimal,
ts_init: UnixNanos,
) -> FillReportExpand description
Parses a PolymarketTradeReport into a [FillReport].
Produces one fill report for the overall trade. The trade_id is
derived from the Polymarket trade ID. Commission is computed from the
instrument’s effective taker fee rate and the fill notional.