How to use the @aws-cdk/aws-certificatemanager.Certificate function in @aws-cdk/aws-certificatemanager

addNewCert(name: string, domains: string[]) {
    const domainName = domains[0]
    const altNames = domains.slice(1)
    const subjectAlternativeNames = altNames.length > 0 ? altNames : undefined
    const props: CM.CertificateProps = { domainName, subjectAlternativeNames }
    return new CM.Certificate(this, `${this.id}-${name}`, props)
  }

constructor(scope) {
        super(scope, 'scale-your-cloudformation');

        const domainName = 'scaleyourcloudformation.com';
        const cert = new Certificate(this, 'cert', {
            domainName,
            validationMethod: ValidationMethod.DNS,
        });

        const websiteBucket = new Bucket(this, 'WebsiteBucket', {
            domainName,
            removalPolicy: RemovalPolicy.DESTROY,
            websiteIndexDocument: 'index.html',
            websiteErrorDocument: 'error.html',
        });

        const originId = new CfnCloudFrontOriginAccessIdentity(
            this,
            'OriginAccessIdentity',
            {
                cloudFrontOriginAccessIdentityConfig: {

export const addNewCert = (
  stack: Construct,
  name: string,
  domains: string[]
) => {
  const domainName = domains[0]
  const altNames = domains.slice(1)
  const subjectAlternativeNames = altNames.length ? altNames : undefined
  const props: CM.CertificateProps = { domainName, subjectAlternativeNames }
  return new CM.Certificate(stack, `${name}Certificate`, props).certificateArn
}
const noCertFound = `No Certificate found, that matches all domains. Make sure