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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_info(self, host, port, unix_socket, auth):
 """Return info dict from specified Redis instance :param str host: redis host :param int port: redis port :rtype: dict """


        client = self._client(host, port, unix_socket, auth)
        if client is None:
            return None

        info = client.info()
        del client
        return info