pub fn parse_book_ticker(
msg: &BinanceFuturesBookTickerMsg,
instrument: &InstrumentAny,
ts_init: UnixNanos,
) -> BinanceWsResult<QuoteTick>pub fn parse_book_ticker(
msg: &BinanceFuturesBookTickerMsg,
instrument: &InstrumentAny,
ts_init: UnixNanos,
) -> BinanceWsResult<QuoteTick>