fn validate_fill_underlying_notional(
fill: &Fill,
side_effect_underlying_notional: Option<Decimal>,
validation: FillUnderlyingNotionalValidation,
) -> Result<Option<Decimal>>fn validate_fill_underlying_notional(
fill: &Fill,
side_effect_underlying_notional: Option<Decimal>,
validation: FillUnderlyingNotionalValidation,
) -> Result<Option<Decimal>>