code: public GetDomainConfigResponse getDomainConfig(GetDomainConfigRequest request) {
          checkNotNull(request, "The parameter request should NOT be null.");
          InternalRequest internalRequest = createRequest(request, HttpMethodName.GET, DOMAIN, request.getDomain(), "config");
          return invokeHttpClient(internalRequest, GetDomainConfigResponse.class);
      }
docs: Get detailed information of a domain.
  
  @param request The request containing all of the options related to the domain.
  @return getDomainConfig of the getDomainConfig operation returned by the service.