code: public ServiceFuture<WorkflowVersionInner> getAsync(String resourceGroupName, String workflowName, String versionId, final ServiceCallback<WorkflowVersionInner> serviceCallback) {
          return ServiceFuture.fromResponse(getWithServiceResponseAsync(resourceGroupName, workflowName, versionId), serviceCallback);
      }
docs: Gets a workflow version.
  
  @param resourceGroupName The resource group name.
  @param workflowName The workflow name.
  @param versionId The workflow versionId.
  @param serviceCallback the async ServiceCallback to handle successful and failed responses.
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the {@link ServiceFuture} object