pub fn parse_instrument(
definition: &AxInstrument,
maker_fee: Decimal,
taker_fee: Decimal,
ts_event: UnixNanos,
ts_init: UnixNanos,
) -> Result<InstrumentAny>pub fn parse_instrument(
definition: &AxInstrument,
maker_fee: Decimal,
taker_fee: Decimal,
ts_event: UnixNanos,
ts_init: UnixNanos,
) -> Result<InstrumentAny>