how to set the input language?

[kabus202]

how to set the input language?

   const id = "asidjf23sdf";

            const connectionConfig = {
                "config": {
                    "confidenceThreshold": 0.7,
                    "languageCode": "nl-NL",
                    "meetingTitle": "My Test Meeting",
                    "timezoneOffset": 480
                },
                id,
                "insightTypes": [
                    "action_item",
                    "question"
                ],
                "speaker": {
                    "name": "My name",
                    "userId": "emailAddress"
                }
            };

            const connection = await symbl.createAndStartNewConnection(connectionConfig);

            connection.on('speech_recognition', (speechData) => {
                const name = speechData.user ? speechData.user.name : 'User';
                const transcript = speechData.punctuated.transcript;
                setTranscribedText(transcript); // Make sure this function is defined
            });