karabiner config to map henkan keys to language input

karabiner.config.json

{
    "description": "The Trinity (G913 Edition): Muhenkan=Eng, Henkan=JP, Katakana=TR",
    "manipulators": [
        {
            "type": "basic",
            "from": {
                "key_code": "japanese_pc_nfer",
                "modifiers": { "optional": ["any"] }
            },
            "to": [ { "select_input_source": { "language": "en" } } ]
        },
        {
            "type": "basic",
            "from": {
                "key_code": "japanese_pc_xfer",
                "modifiers": { "optional": ["any"] }
            },
            "to": [ { "select_input_source": { "language": "ja" } } ]
        },
        {
            "type": "basic",
            "from": {
                "key_code": "japanese_pc_katakana",
                "modifiers": { "optional": ["any"] }
            },
            "to": [ { "select_input_source": { "language": "tr" } } ]
        }
    ]
}