pub fn parse_ticker(
msg: &BinanceSpotTickerMsg,
instrument: &InstrumentAny,
ts_init: UnixNanos,
) -> Result<BinanceSpotTicker>pub fn parse_ticker(
msg: &BinanceSpotTickerMsg,
instrument: &InstrumentAny,
ts_init: UnixNanos,
) -> Result<BinanceSpotTicker>