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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 get(self, key, confidence=0):
 """ Returns the info with the given key, if it has at least the given confidence. Returns None otherwise. """

        if key not in self.info:
            return None
        conf, value = self.info.get(key)
        if conf >= confidence:
            return value
        return None