code: def is_available(cls) -> bool:
      return psutil is not None
  
imports: import threading
  from collections import deque
  from typing import TYPE_CHECKING, List, Optional
  from .aggregators import aggregate_last, aggregate_mean
  from .asset_registry import asset_registry
  from .interfaces import Interface, Metric, MetricsMonitor
label_desc: Use image node_id 2 for calling the CPU obj's underlying member method code with example usage: obj.is_available(cls) and returns: unknown