如何在测试安卓应用程序时隐藏LeanFT中的键盘？

import com.hp.lft.sdk.android.UiObject;
import com.hp.lft.sdk.android.UiSelector;
import com.hp.lft.sdk.android.keyboard.AndroidSoftKeyboard;

AndroidSoftKeyboard keyboard = Android.getDevice().getSoftKeyboard();

keyboard.hide();

import com.hp.lft.sdk.android.UiObject;
import com.hp.lft.sdk.android.UiSelector;
import com.hp.lft.sdk.android.keyboard.AndroidSoftKeyboard;
import com.hp.lft.sdk.*;
import unittesting.*;

public class AndroidKeyboardTest extends UnitTestClassBase {

    @BeforeClass
    public static void setUpBeforeClass() throws Exception {
        instance = new Desktop();

    }

    @Test
    public void testHideKeyboard() throws GeneralLeanFtException {
        AndroidSoftKeyboard keyboard = Android.getDevice().getSoftKeyboard();
        keyboard.hide();
        
        // 继续执行其他测试步骤
    }

    @AfterClass
    public static void tearDownAfterClass() throws Exception {
        instance.close();
    }
}