docs: public SchedulerDriver createDriver(Scheduler scheduler, boolean implicitAcknowledgements) {
  		MesosSchedulerDriver schedulerDriver;
  		if (this.credential().isDefined()) {
  			schedulerDriver =
  				new MesosSchedulerDriver(scheduler, frameworkInfo.build(), this.masterUrl(),
  					implicitAcknowledgements, this.credential().get().build());
  		}
  		else {
  			schedulerDriver =
  				new MesosSchedulerDriver(scheduler, frameworkInfo.build(), this.masterUrl(),
  					implicitAcknowledgements);
  		}
  		return schedulerDriver;
  	}