import demistomock as demisto


def update_list(_list: list, update_with):
    if isinstance(update_with, list):
        _list.extend(update_with)
    else:
        _list.append(update_with)


def main():
    args: dict = demisto.args()
    root = args.get("key")
    if root:
        if not isinstance(root, list):
            root = [root]
        keys: list = args.get("list", "").split(",")

        t: list = []
        for obj in root:
            for _key in keys:
                temp = obj.get(_key) if obj else None
                if temp:
                    update_list(t, temp)

        initial_value = args.get("value")
        if initial_value:
            update_list(t, initial_value)
        demisto.results(t)


if __name__ in ("builtins", "__builtin__"):
    main()