pub fn validate_order_limits(
wallet: &WalletAddress,
order_info: &OrderInfo,
order_index: &EngineOrderIndex,
engine_positions: &HashMap<(WalletAddress, String), EnginePosition>,
limits: TradingLimits,
) -> Result<(), String>pub fn validate_order_limits(
wallet: &WalletAddress,
order_info: &OrderInfo,
order_index: &EngineOrderIndex,
engine_positions: &HashMap<(WalletAddress, String), EnginePosition>,
limits: TradingLimits,
) -> Result<(), String>