Method transfer

java/lib/src/main/java/io/github/ccxt/exchanges/CexCore.java:1863–1888

@method @name cex#transfer @description transfer currency internally between wallets on the same account @see https://trade.cex.io/docs/#rest-private-api-calls-internal-transfer @param {string} code unified currency code @param {float} amount amount to transfer @param {string} fromAccount 'SPOT', 'F

(Object code, Object amount, Object fromAccount2, Object toAccount2, Object... optionalArgs)

     * @returns {object} a [transfer structure]{@link https://docs.ccxt.com/?id=transfer-structure}
     */
    public java.util.concurrent.CompletableFuture<Object> transfer(Object code, Object amount, Object fromAccount2, Object toAccount2, Object... optionalArgs)
    {
        final Object fromAccount3 = fromAccount2;
        final Object toAccount3 = toAccount2;
        return java.util.concurrent.CompletableFuture.supplyAsync(() -> {
            Object fromAccount = fromAccount3;
            Object toAccount = toAccount3;
            Object parameters = Helpers.getArg(optionalArgs, 0, new java.util.HashMap<String, Object>() {{}});
            Object transfer = null;
            if (Helpers.isTrue(Helpers.isTrue(!Helpers.isEqual(toAccount, "")) && Helpers.isTrue(!Helpers.isEqual(fromAccount, ""))))
            {
                transfer = (this.transferBetweenSubAccounts(code, amount, fromAccount, toAccount, parameters)).join();
            } else
            {
                transfer = (this.transferBetweenMainAndSubAccount(code, amount, fromAccount, toAccount, parameters)).join();
            }
            Object fillResponseFromRequest = this.handleOption("transfer", "fillResponseFromRequest", true);
            if (Helpers.isTrue(fillResponseFromRequest))
            {
                Helpers.addElementToObject(transfer, "fromAccount", fromAccount);
                Helpers.addElementToObject(transfer, "toAccount", toAccount);
            }
            return transfer;
        });

    }

    public java.util.concurrent.CompletableFuture<Object> transferBetweenMainAndSubAccount(Object code, Object amount, Object fromAccount2, Object toAccount, Object... optionalArgs)
    {