How to use the @0x/contracts-test-utils.ExchangeFunctionName.BatchFillOrKillOrders function in @0x/contracts-test-utils

public async batchFillOrKillOrdersAsync(
        orders: Order[],
        takerAssetFillAmounts: BigNumber[],
        signatures: string[],
        txData: TxData,
        sendTxOpts?: Partial,
    ): Promise {
        return this._batchFillAsync(
            ExchangeFunctionName.BatchFillOrKillOrders,
            orders,
            takerAssetFillAmounts,
            signatures,
            txData,
            sendTxOpts,
        );
    }