AWS SDK javascript v3 assume role

.js

const assumeRole = async (email) => {
    console.log(`Assuming role`);
    const param = {
        RoleArn: QUICKSIGHT_ROLE_ARN,
        RoleSessionName: email, // An unique identifier like email/username etc
        DurationSeconds: 900,
    };
    const command = new AssumeRoleCommand(param);

    const response = await stsClient.send(command);
    console.log(JSON.stringify(response));
    return getQuickSightClient(response.Credentials);
};