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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 set_requestable(self, requestable=True):
 # type: (bool) -> None """Set the dataset to be of type requestable or not Args: requestable (bool):
 Set whether dataset is requestable. Defaults to True. Returns: None """

        self.data['is_requestdata_type'] = requestable
        if requestable:
            self.data['private'] = False