default void onContinuousGlucoseRateOfDecreaseAlertReceived(
			@NonNull final BluetoothDevice device,
			@FloatRange(from = 0) final float alertLevel,
			final boolean secured) {
		// empty
	}
Callback called when the Rate Of Decrease Alert response was received.

@param device     the target device.
@param alertLevel a rate of glucose concentration change in mg/dL/min to trigger the
                  Rate Of Decrease Alert in the Sensor Status Annunciation field.
@param secured    true, if the value received was secured with E2E-CRC
                  value and the CRC matched the packet. False, if the
                  CRC field was not present.
ble-common/src/main/java/no/nordicsemi/android/ble/common/profile/cgm/CGMSpecificOpsControlPointCallback.java