code: public ServiceFuture<EventHubConnectionInner> beginCreateOrUpdateAsync(String resourceGroupName, String clusterName, String databaseName, String eventHubConnectionName, EventHubConnectionInner parameters, final ServiceCallback<EventHubConnectionInner> serviceCallback) {
          return ServiceFuture.fromResponse(beginCreateOrUpdateWithServiceResponseAsync(resourceGroupName, clusterName, databaseName, eventHubConnectionName, parameters), serviceCallback);
      }
docs: Creates or updates a Event Hub connection.
  
  @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 eventHubConnectionName The name of the event hub connection.
  @param parameters The Event Hub connection parameters supplied to the CreateOrUpdate operation.
  @param serviceCallback the async ServiceCallback to handle successful and failed responses.
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the {@link ServiceFuture} object