code: public ServiceFuture<List<DatabaseInner>> listByRecommendedElasticPoolAsync(String resourceGroupName, String serverName, String recommendedElasticPoolName, final ServiceCallback<List<DatabaseInner>> serviceCallback) {
          return ServiceFuture.fromResponse(listByRecommendedElasticPoolWithServiceResponseAsync(resourceGroupName, serverName, recommendedElasticPoolName), serviceCallback);
      }
docs: Returns a list of databases inside 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.
  @param serviceCallback the async ServiceCallback to handle successful and failed responses.
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the {@link ServiceFuture} object