LegsDataEntry

One streamed update entry for multiple legs.

Field	Type	Required	Nullable	Default	Description
LegPrices	dict[int, LivePrices]	Yes	Yes		Per-leg live prices keyed by live leg id. null when Include does not include Prices.
LegGreeks	dict[int, LiveGreeks]	Yes	Yes		Per-leg live greeks keyed by live leg id. null when Include does not include Greeks.
LegPnLs	dict[int, LivePnL]	Yes	Yes		Per-leg live PnL keyed by live leg id. null when Include does not include PnL.