code: public Observable<Void> enableAsync(String jobScheduleId) {
          return enableWithServiceResponseAsync(jobScheduleId).map(new Func1<ServiceResponseWithHeaders<Void, JobScheduleEnableHeaders>, Void>() {
              @Override
              public Void call(ServiceResponseWithHeaders<Void, JobScheduleEnableHeaders> response) {
                  return response.body();
              }
          });
      }
docs: Enables a job schedule.
  
  @param jobScheduleId The ID of the job schedule to enable.
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the {@link ServiceResponseWithHeaders} object if successful.