Getting error: 'pmlib' is not defined

[mahfuz-khan]

After migrating a collection from Postman to Bruno, I tried to execute Token, but facing the following error.
"Error invoking remote method 'send-http-request': ,Error: 'pmlib' is not defined".

For your additional information:
Once after migration from Postman, I saw that some commands were not translated.

In the Script section:
// eval(pm.globals.get('pmlib_code'));
let CLIENT_ASSERTION = pmlib.jwtSign(jwk = PRIVATE_KEY, payload, header);

// postman.setGlobalVariable("CLIENT_ASSERTION", CLIENT_ASSERTION);

In the Tests section

let jsonData = JSON.parse(responseBody);
// postman.setGlobalVariable('JWT', jsonData.access_token);
// postman.setGlobalVariable('CustomerAccountId', '12345678');
// postman.setGlobalVariable('API_ENDPOINT_URL', 'https://example.coml:8101');
test("Response time is less than 200ms", function () {
expect(res.getResponseTime()).to.be.below(200);
});

What is the code for Bruno that I can use?

Please help.