Karabiner private.xml for non-Apple keyboard to toggle Target Display Mode

private.xml

<?xml version="1.0"?>
<root>
  <devicevendordef>
    <vendorname>Dell</vendorname>
    <vendorid>16700</vendorid>
  </devicevendordef>
  
  <deviceproductdef>
    <productname>Dell USB Keyboard</productname>
    <productid>8195</productid>
  </deviceproductdef>
  
  <item>
    <name>Cmd + F2 for Target Display Mode (Dell)</name>
    <identifier>private.dell_usb_toggle_TMD</identifier>
    <device_only>DeviceVendor::Dell, DeviceProduct::Dell USB Keyboard</device_only>   
    <!--Target Display Mode-->
    <autogen>__KeyToKey__ KeyCode::F2, VK_COMMAND, ConsumerKeyCode::BRIGHTNESS_UP, ModifierFlag::COMMAND_L</autogen>
  </item>
</root>