code: public Observable<OutputInner> createOrReplaceAsync(String resourceGroupName, String jobName, String outputName, OutputInner output, String ifMatch, String ifNoneMatch) {
          return createOrReplaceWithServiceResponseAsync(resourceGroupName, jobName, outputName, output, ifMatch, ifNoneMatch).map(new Func1<ServiceResponseWithHeaders<OutputInner, OutputsCreateOrReplaceHeaders>, OutputInner>() {
              @Override
              public OutputInner call(ServiceResponseWithHeaders<OutputInner, OutputsCreateOrReplaceHeaders> response) {
                  return response.body();
              }
          });
      }
docs: Creates an output or replaces an already existing output under an existing streaming job.
  
  @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 jobName The name of the streaming job.
  @param outputName The name of the output.
  @param output The definition of the output that will be used to create a new output or replace the existing one under the streaming job.
  @param ifMatch The ETag of the output. Omit this value to always overwrite the current output. Specify the last-seen ETag value to prevent accidentally overwritting concurrent changes.
  @param ifNoneMatch Set to '*' to allow a new output to be created, but to prevent updating an existing output. Other values will result in a 412 Pre-condition Failed response.
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the observable to the OutputInner object