Params: {
    deadline?: string;
    orders: {
        cl_ord_id?: string;
        close?: {
            ordertype?:
                | "limit"
                | "stop-loss"
                | "take-profit"
                | "stop-loss-limit"
                | "take-profit-limit"
                | "trailing-stop"
                | "trailing-stop-limit";
            price?: string;
            price2?: string;
        };
        displayvol?: string;
        expiretm?: string;
        leverage?: string;
        oflags?: string;
        ordertype:
            | "market"
            | "limit"
            | "stop-loss"
            | "take-profit"
            | "stop-loss-limit"
            | "take-profit-limit"
            | "settle-position";
        price?: string;
        price2?: string;
        reduce_only?: boolean;
        starttm?: string;
        stptype?: "cancel-newest" | "cancel-oldest" | "cancel-both";
        timeinforce?: "GTC" | "IOC" | "GTD";
        trigger?: "last" | "index";
        type: "buy" | "sell";
        userref?: number;
        volume: string;
    }[];
    pair: string;
    validate?: boolean;
}

Reference: Add Order Batch