调用什么android API才能将"command“写入BLE中的CCCD handle？

// 创建BluetoothGattCallback实例
private BluetoothGattCallback gattCallback = new BluetoothGattCallback() {
    @Override
    public void onConnectionStateChange(BluetoothGatt gatt, int status, int newState) {
        if (newState == BluetoothProfile.STATE_CONNECTED) {
            // 连接成功，发现服务
            gatt.discoverServices();
        }
    }

    @Override
    public void onServicesDiscovered(BluetoothGatt gatt, int status) {
        if (status == BluetoothGatt.GATT_SUCCESS) {
            // 遍历服务和特征，找到目标特征的UUID
            BluetoothGattService service = gatt.getService(serviceUuid);
            BluetoothGattCharacteristic characteristic = service.getCharacteristic(characteristicUuid);

            // 将"command"写入目标特征的值
            byte[] commandBytes = "command".getBytes();
            characteristic.setValue(commandBytes);
            gatt.writeCharacteristic(characteristic);
        }
    }
};

// 连接BLE设备并写入"command"
private void connectAndWriteCommand() {
    BluetoothAdapter bluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
    BluetoothDevice device = bluetoothAdapter.getRemoteDevice(deviceAddress);
    BluetoothGatt gatt = device.connectGatt(this, false, gattCallback);
}