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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 finditem(self, item, threshold=None):
 """Return most similar item to the provided one, or None if nothing exceeds the threshold. (1, 'Ham') (2, 'Eggsy') """

        results = self.searchitem(item, threshold)
        if results:
            return results[0][0]
        else:
            return None