Cannot find module 'aws-cloudfront-sign'

I want to create cloudfront presigned URL in my lambda function through this code:

import { createRequire } from 'module';
const require = createRequire(import.meta.url);
var AWS = require('aws-cloudfront-sign');

export const handler = async(event) => {

    
    var signingParams = {
  keypairId: "************************************",
  privateKeyString: "****************************************",

  privateKeyPath: '/path/to/private/key',
  expireTime: 1426625464599
}

var signedUrl = AWS.getSignedUrl(
  'http://example.cloudfront.net/path/to/s3/object', 
  signingParams
);

console.log(signedUrl);
};

I don't know what is happening. Another question, I have 2 keys rsa xxxxxxx.pem & pk xxxxxxxxx.pem. I'm placing the rsa.pem in keypairid and pk.pem in private key string by removing -----END RSA PRIVATE KEY----- & -----BEGIN RSA PRIVATE KEY----- from the strings.