CDN Script Fast-XML-Parser Postman - cdn

Question

I want to use fast-xml-parser to validate a SOAP response from a Postman request. Based on various articles, I implemented fetch cdn and put it in a variable method.
So this is my script, postman will call the cdn endpoint to get the fast-xml-parser package:
https://cdnjs.cloudflare.com/ajax/libs/fast-xml-parser/4.0.7/fxparser.js
pm.test("Validate XML", function () {
pm.sendRequest("https://cdnjs.cloudflare.com/ajax/libs/fast-xml-parser/4.0.7/fxparser.js", (error, res) => {
if (error || res.code !== 200) {
pm.expect.fail('Could not load external library');}
const fastxmlvalidator = res.text();
console.log(fastxmlvalidator)
console.log(fastxmlvalidator.XMLValidator)
const result = fastxmlvalidator.XMLValidator.validate(pm.response.text(), {
allowBooleanAttributes: true
});
console.log(result)
});
})
And store it in fastxmlvalidator constant. Now if I console log it, postman will return all the content stored in that cdn. And when I tried to use the constructor, it returned an "undefined". Hence, I cannot retrieve the function validate from it.
Here's my code in VSCode:
I set the package in the fastxmlvalidator, have a sample SOAP in "XMLdata" and execute it as follow:
const fastxmlvalidator = require("fast-xml-parser");
console.log(fastxmlvalidator)
const XMLdata = "<SOAP-ENV:Envelope xmlns:SOAP-ENV=\"http://schemas.xmlsoap.org/soap/envelope/\">"+
" <SOAP-ENV:Header/>"+
" <SOAP-ENV:Body>"+
" <Message xmlns=\"http://schemas.com.au/message/Message.xsd\">"+
" <Control>"+
" <Environment>DEV</Environment>"+
" </Control>"+
" </Message>"+
" </SOAP-ENV:Body>"+
"</SOAP-ENV:Envelope>"
const result = fastxmlvalidator.XMLValidator.validate(XMLdata, {
allowBooleanAttributes: true
});
console.log(result)
It should return a boolean of true, which means it's a valid XML.
Any suggestions would be much appreciated it!