Add new line inside long-text using API

Hi,

I tried to add new line symbol inside long text value using this query:

mutation { change_column_value ( board_id: 940074204, item_id: 1129522709, column_id: "long_text", value: "{\\"text\\":\\"234test123\\n222\\"}" ) { id } }

But I have got an error after executed the query:

{
“error_message”: “Internal server error”,
“status_code”: 500
}

The same error on the “try it yourself”

Is that not allowed ?

Thanks!