protected function migrateTimeslots()
    {
        $this->output->info('### Migrating timeslots ###');
        foreach ($this->timeslots() as $timeslot) {
            $timeslot->showMigratingInfo($this->output,1);
            $this->migrateTimeslot($timeslot);
        }
        $this->output->info('### END OF Migrating timeslots ###');
    }