Delete balena application resources via node SDK when app delete as a whole is timing out

delete-app.js

const getSdk = require('balena-sdk');
const balena = getSdk({
apiUrl: "https://api.balena-cloud.com/",
dataDirectory: "/tmp"
});
const key = process.env.BALENA_KEY;
const appId = parseInt(process.env.APP, 10);
const countResource = (resource) => {
    return balena.pine.get({
        resource: resource + '/$count',
        options: {
            $filter: { belongs_to__application: appId }
        }
    });
}
const deleteBatch = async () => {
    await balena.auth.loginWithToken(key);
    const currentRelease = (await balena.models.application.get(appId)).commit;
    // delete all devices
    const deviceBatchSize = 10;
    while (await countResource('device') > 0) {
        console.log(`deleting ${deviceBatchSize} devices...`);
        const result = await balena.pine.delete({
            resource: 'device',
            options: { $filter:
                { belongs_to__application: appId },
                $top: deviceBatchSize }
        });
    }
    // delete all releases
    const releaseBatchSize = 100;
    while (await countResource('release') > 1) {
        console.log(`deleting ${releaseBatchSize} releases...`);
        const result = await balena.pine.delete({
            resource: 'release',
            options: { $filter:
                { belongs_to__application: appId, commit: { $ne: currentRelease } },
                $top: releaseBatchSize }
        });
    }
};
deleteBatch().then(() => console.log('completed'));

L6-L7 indicate that one must have the environment variables defined for this to work:

BALENA_KEY: the API or session token from the dashboard for the user which has auth to delete the app's resources
APP: the numeric id of the application (eg. 1330472)