Request: BasePrivateWsRequest<"batch_add", {
    deadline?: string;
    orders: {
        cash_order_qty?: number;
        cl_ord_id?: string;
        conditional?: {
            limit_price?: number;
            limit_price_type?: "static" | "pct" | "quote";
            order_type:
                | "limit"
                | "stop-loss"
                | "stop-loss-limit"
                | "take-profit"
                | "take-profit-limit"
                | "trailing-stop"
                | "trailing-stop-limit";
            trigger_price?: number;
            trigger_price_type?: "static" | "pct" | "quote";
        };
        display_qty?: number;
        effective_time?: string;
        expire_time?: string;
        fee_preference?: "base" | "quote";
        limit_price?: number;
        limit_price_type?: "static" | "pct" | "quote";
        margin?: boolean;
        no_mpp?: boolean;
        order_qty: number;
        order_type:
            | "limit"
            | "market"
            | "iceberg"
            | "stop-loss"
            | "stop-loss-limit"
            | "take-profit"
            | "take-profit-limit"
            | "trailing-stop"
            | "trailing-stop-limit"
            | "settle-position";
        order_userref?: number;
        post_only?: boolean;
        reduce_only?: boolean;
        sender_sub_id?: string;
        side: "buy" | "sell";
        stp_type?: "cancel_newest" | "cancel_oldest" | "cancel_both";
        time_in_force?: "gtc" | "gtd" | "ioc";
        triggers?: {
            price: number;
            price_type?: "static" | "pct" | "quote";
            reference?: "index" | "last";
        };
    }[];
    symbol: string;
    validate?: boolean;
}>

Reference: Batch Add