code: public Observable<RecommendedElasticPoolInner> getAsync(String resourceGroupName, String serverName, String recommendedElasticPoolName) {
          return getWithServiceResponseAsync(resourceGroupName, serverName, recommendedElasticPoolName).map(new Func1<ServiceResponse<RecommendedElasticPoolInner>, RecommendedElasticPoolInner>() {
              @Override
              public RecommendedElasticPoolInner call(ServiceResponse<RecommendedElasticPoolInner> response) {
                  return response.body();
              }
          });
      }
docs: Gets a recommented elastic pool.
  
  @param resourceGroupName The name of the resource group that contains the resource. You can obtain this value from the Azure Resource Manager API or the portal.
  @param serverName The name of the server.
  @param recommendedElasticPoolName The name of the recommended elastic pool to be retrieved.
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the observable to the RecommendedElasticPoolInner object