code: public Observable<Page<WorkflowRunActionInner>> listAsync(final String resourceGroupName, final String workflowName, final String runName, final Integer top, final String filter) {
          return listWithServiceResponseAsync(resourceGroupName, workflowName, runName, top, filter)
              .map(new Func1<ServiceResponse<Page<WorkflowRunActionInner>>, Page<WorkflowRunActionInner>>() {
                  @Override
                  public Page<WorkflowRunActionInner> call(ServiceResponse<Page<WorkflowRunActionInner>> response) {
                      return response.body();
                  }
              });
      }
docs: Gets a list of workflow run actions.
  
  @param resourceGroupName The resource group name.
  @param workflowName The workflow name.
  @param runName The workflow run name.
  @param top The number of items to be included in the result.
  @param filter The filter to apply on the operation. Options for filters include: Status.
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the observable to the PagedList&lt;WorkflowRunActionInner&gt; object