code: public Observable<Page<JobStreamInner>> listByJobAsync(final String resourceGroupName, final String automationAccountName, final String jobId, final String filter) {
          return listByJobWithServiceResponseAsync(resourceGroupName, automationAccountName, jobId, filter)
              .map(new Func1<ServiceResponse<Page<JobStreamInner>>, Page<JobStreamInner>>() {
                  @Override
                  public Page<JobStreamInner> call(ServiceResponse<Page<JobStreamInner>> response) {
                      return response.body();
                  }
              });
      }
docs: Retrieve a list of jobs streams identified by job id.
  
  @param resourceGroupName Name of an Azure Resource group.
  @param automationAccountName The name of the automation account.
  @param jobId The job Id.
  @param filter The filter to apply on the operation.
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the observable to the PagedList&lt;JobStreamInner&gt; object