karabiner elements macos switch en/ru/de

gistfile1.txt

{
  "title": "switch en/ru/de",
  "rules": [
    {
      "description": "Use alt+shift+4(ru)/5(en)",
      "manipulators": [
        {
          "from": {
            "key_code": "5",
            "modifiers": {
              "mandatory": [
                "option",
                "left_shift"
              ],
              "optional": [
                "any"
              ]
            }
          },
          "to": [
            {
              "select_input_source": {
                "language": "en"
              }
            }
          ],
          "type": "basic"
        },
        {
          "from": {
            "key_code": "4",
            "modifiers": {
              "mandatory": [
                "option",
                "left_shift"
              ],
              "optional": [
                "any"
              ]
            }
          },
          "to": [
            {
              "select_input_source": {
                "language": "ru"
              }
            }
          ],
          "type": "basic"
        },
        {
          "from": {
            "key_code": "3",
            "modifiers": {
              "mandatory": [
                "option",
                "left_shift"
              ],
              "optional": [
                "any"
              ]
            }
          },
          "to": [
            {
              "select_input_source": {
                "language": "de"
              }
            }
          ],
          "type": "basic"
        }
      ]
    }
  ]
}