How to lock the iPad's screen with a keyboard shortcut? Is it possible to lock the iPad's screen by using a keyboard shortcut, when using a BT keyboard, or the SmartKeyboard?

Cmd+Shift+Eject as on the Mac does not work. Holding down the Cmd key also does not show any shortcut.
I was able to figure out Control + Command + Q seems to work on the new iPad Pro keyboard to lock it.