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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _ensure_insert(self, new_items, insert_to):
 """Ensure an item is inserted to a list or create a new empty list :param new_items: the item(s) to insert :type new_items: list(obj) :param insert_to: the list on which to insert the items at index 0 :type insert_to: list() """

        insert_to = insert_to or []
        insert_to.insert(0, new_items)
        return insert_to