Method safeList

java/lib/src/main/java/io/github/ccxt/Exchange.java:4227–4246

(Object dictionaryOrList, Object key, Object... optionalArgs)

    }

    public Object safeList(Object dictionaryOrList, Object key, Object... optionalArgs)
    {
        /**
        * @ignore
        * @method
        * @description safely extract an Array from dictionary or list
        * @returns {Array | undefined}
        */
        Object defaultValue = Helpers.getArg(optionalArgs, 0, null);
        Object value = this.safeValue(dictionaryOrList, key, defaultValue);
        if (Helpers.isTrue(Helpers.isEqual(value, null)))
        {
            return defaultValue;
        }
        if (Helpers.isTrue(Helpers.isArray(value)))
        {
            return value;
        }
        return defaultValue;
    }

    public void handleDeltas(Object orderbook, Object deltas)
    {