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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 move(self, item, new_position):
 """ Moves a item list to new position Calls observer ``self.observer(UpdateType.DELETED, item, index)`` and observer ``self.observer(UpdateType.CREATED, item, index)`` if ``val != self[index]`` :param item: Item that will be moved to new_position :param new_position: Item's new position """

        if item == self[new_position]:
            return

        self.remove(item)
        self.insert(new_position, item)