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.

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