code: public function getAllEvents(): array
      {
          $calendarEvents = null;
          $cache = $this->cache;
  
          if ($cache::has(self::ALL_EVENTS_KEY)) {
              return $cache::get(self::ALL_EVENTS_KEY);
          }
  
          $allEvents = $this->calendarEvent
              ->with(['calendarEventRepeatDates'])
              ->get()
          ;
          $calendarEvents = $allEvents->keyBy('id')
                                      ->toArray()
          ;
  
          $cache::put(self::ALL_EVENTS_KEY, $calendarEvents, $this->cacheTimeToLive);
  
          return $calendarEvents;
      }
docs: Gets all calendar events
  
  @return \Illuminate\Database\Eloquent\Collection|null|static[]