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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 save(self, path):
 """Saves this catalogue's data to `path`. :param path: file path to save catalogue data to :type path: `str` """

        writer = csv.writer(open(path, 'w', newline=''), delimiter=' ')
        rows = list(self.items())
        rows.sort(key=lambda x: x[0])
        writer.writerows(rows)