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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):
 """ Executes the callable registered at the specified key and returns its value along with type info. Subsequent queries are cached internally. `key` String key for a previously stored callable. """


        obj = super(ExtRegistry, self).get(key)
        if obj is None:
            return obj

        return (obj, self._type_info.get(key))