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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, id):
 """ Get a single instance by pk id. :param id: The UUID of the instance you want to retrieve. """

        with rconnect() as conn:
            if id is None:
                raise ValueError

            if isinstance(id, uuid.UUID):
                id = str(id)

            if type(id) != str and type(id) != unicode:
                raise ValueError

            try:
                query = self._base().get(id)
                log.debug(query)
                rv = query.run(conn)
            except ReqlOpFailedError as e:
                log.warn(e)
                raise
            except Exception as e:
                log.warn(e)
                raise
            if rv is not None:
                return self._model(rv)

            return None