def unlock(self):
        """
        Perform `adb shell input keyevent MENU` and `adb shell input keyevent BACK` commands to attempt
        to unlock the screen

        Returns:
            None

        Warnings:
            Might not work on all devices

        """
        self.shell('input keyevent MENU')
        self.shell('input keyevent BACK')

        Perform `adb shell input keyevent MENU` and `adb shell input keyevent BACK` commands to attempt
        to unlock the screen

        Returns:
            None

        Warnings:
            Might not work on all devices

        
airtest/core/android/adb.py