code: public Observable<EventHubConnectionValidationListResultInner> eventhubConnectionValidationAsync(String resourceGroupName, String clusterName, String databaseName, EventHubConnectionValidation parameters) {
          return eventhubConnectionValidationWithServiceResponseAsync(resourceGroupName, clusterName, databaseName, parameters).map(new Func1<ServiceResponse<EventHubConnectionValidationListResultInner>, EventHubConnectionValidationListResultInner>() {
              @Override
              public EventHubConnectionValidationListResultInner call(ServiceResponse<EventHubConnectionValidationListResultInner> response) {
                  return response.body();
              }
          });
      }
docs: Checks that the Event Hub data connection parameters are valid.
  
  @param resourceGroupName The name of the resource group containing the Kusto cluster.
  @param clusterName The name of the Kusto cluster.
  @param databaseName The name of the database in the Kusto cluster.
  @param parameters The Event Hub connection parameters supplied to the CreateOrUpdate operation.
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the observable to the EventHubConnectionValidationListResultInner object