code: def get_scheduler() -> AsyncIOScheduler:
      return _scheduler
  
file_path: dstack/src/dstack/_internal/server/background/__init__.py
imports: from apscheduler.schedulers.asyncio import AsyncIOScheduler
  from apscheduler.triggers.interval import IntervalTrigger
  from dstack._internal.server.background.tasks.process_finished_jobs import process_finished_jobs
  from dstack._internal.server.background.tasks.process_pending_jobs import process_pending_jobs
  from dstack._internal.server.background.tasks.process_running_jobs import process_running_jobs
  from dstack._internal.server.background.tasks.process_submitted_jobs import process_submitted_jobs
label_desc: Use image node_id 1 for calling a global function with example usage: get_scheduler() and returns: _scheduler