code: public Observable<Page<NameIdentifierInner>> listRecommendationsAsync(final DomainRecommendationSearchParameters parameters) {
          return listRecommendationsWithServiceResponseAsync(parameters)
              .map(new Func1<ServiceResponse<Page<NameIdentifierInner>>, Page<NameIdentifierInner>>() {
                  @Override
                  public Page<NameIdentifierInner> call(ServiceResponse<Page<NameIdentifierInner>> response) {
                      return response.body();
                  }
              });
      }
docs: Get domain name recommendations based on keywords.
  Get domain name recommendations based on keywords.
  
  @param parameters Search parameters for domain name recommendations.
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the observable to the PagedList&lt;NameIdentifierInner&gt; object