code: @Override
      public ListWebsiteCertificateAuthoritiesResult listWebsiteCertificateAuthorities(ListWebsiteCertificateAuthoritiesRequest request) {
          request = beforeClientExecution(request);
          return executeListWebsiteCertificateAuthorities(request);
      }
docs: <p>
  Retrieves a list of certificate authorities added for the current account and Region.
  </p>
  
  @param listWebsiteCertificateAuthoritiesRequest
  @return Result of the ListWebsiteCertificateAuthorities operation returned by the service.
  @throws UnauthorizedException
  You are not authorized to perform this action.
  @throws InternalServerErrorException
  The service is temporarily unavailable.
  @throws InvalidRequestException
  The request is not valid.
  @throws TooManyRequestsException
  The number of requests exceeds the limit.
  @sample AmazonWorkLink.ListWebsiteCertificateAuthorities
  @see <a href="http://docs.aws.amazon.com/goto/WebAPI/worklink-2018-09-25/ListWebsiteCertificateAuthorities"
  target="_top">AWS API Documentation</a>