import asyncio import time from typing import Dict, Any, Optional class VirtualVacuumPump: """Virtual vacuum pump for testing""" def __init__(self, device_id: Optional[str] = None, config: Optional[Dict[str, Any]] = None, **kwargs): self.device_id = device_id or "unknown_vacuum_pump" self.config = config or {} self.data = {} self._status = "OPEN" async def initialize(self) -> bool: """Initialize virtual vacuum pump""" self.data.update({ "status": self._status }) return True async def cleanup(self) -> bool: """Cleanup virtual vacuum pump""" return True @property def status(self) -> str: return self._status def get_status(self) -> str: return self._status def set_status(self, string): self._status = string time.sleep(5) def open(self): self._status = "OPEN" def close(self): self._status = "CLOSED" def is_open(self): return self._status def is_closed(self): return not self._status