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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 _depaginate_all(self, url):
 """GETs the url provided and traverses the 'next' url that's returned while storing the data in a list. Returns a single list of all items. """

        items = []
        for x in self._depagination_generator(url):
            items += x
        return items