pub async fn build_options_chain_leg(
instrument: &Instrument,
quote_provider: &Arc<dyn QuoteProvider>,
greeks_cache: &Arc<dyn GreeksCacheReader>,
side_filter: OptionsChainSideFilter,
) -> OptionsChainLegpub async fn build_options_chain_leg(
instrument: &Instrument,
quote_provider: &Arc<dyn QuoteProvider>,
greeks_cache: &Arc<dyn GreeksCacheReader>,
side_filter: OptionsChainSideFilter,
) -> OptionsChainLeg