customDomainCertificateArn: The custom domain name’s certificate Amazon resource name (ARN).
customDomainName: The custom domain name associated with the workgroup.
maxResults: An optional parameter that specifies the maximum number of results to return. You can use nextToken to display the next page of results.
nextToken: When nextToken is returned, there are more results available. The value of nextToken is a unique pagination token for each page. Make the call again using the returned token to retrieve the next page.